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Description
Ultimate SRS Upgrade Kit (420mm Barrel 2.0-2.5 Joule)The Ultimate Stalker Upgrade Kit to make your Silverback SRS a true sniper beast. This upgrade kit makes your SRS accurate, consistent, and silent! Load up your magazines and dominate the field like never before. The package includes the following Stalker upgrades: Stalker SRS Kraken Hop Up Chamber Ultimate Edition Stalker SRS Scorpion Piston Ultimate Edition Stalker Morpheus 420mm Inner Barrel Stalker SRS Fluted Teflon Cylinder We strongly believe
The Ultimate Stalker Upgrade Kit to make your Silverback SRS a true sniper beast. This upgrade kit makes your SRS accurate, consistent, and silent! Load up your magazines and dominate the field like never before.
The package includes the following Stalker upgrades:
- Stalker SRS Kraken Hop-Up Chamber - Ultimate Edition
- Stalker SRS Scorpion Piston - Ultimate Edition
- Stalker Morpheus 420mm Inner Barrel
- Stalker SRS Fluted Teflon Cylinder
We strongly believe that Rapax springs are the best springs on the market. The results achieved with these springs and the Stalker upgrades are outstanding.
- Rapax RMS 2+ Spring (includes tensioners to increase FPS/Joule if needed.)
*Note: This upgrade discount is only available when all products are in stock. Click 'add to cart'; if all products are visible, you can purchase this kit with the mentioned discount. If the products are not visible in your shopping cart and you see a blank page, it means one of these products is not available.
Product Descriptions:
Kraken Hop-Up Chamber
- Easy setup for both experienced and new players (~2-minute bucking swap)
- 100% self-alignment system for a perfectly straight setup
- 100% straight / 100% seal patented Kraken bucking
- Adjustment wheel head cut-out for easy tuning
- O-ring guided adjustment wheel
- Custom-made steel hop arm screw
- Laser-engraved white letters and text
- Front O-ring to prevent BBs from falling into the receiver
- Modular chamber design compatible with most VSR buckings, bridged/unbridged barrels, and nubs
- Modular arm section to swap and use S1, S2, and S3 arms
- V-groove island for upper outer barrel screw (SRS A1)
- V-groove for lower outer barrel screw (SRS A2)
- Side flat body cutouts for future Stalker products
- Fast setup for easy inner barrel or bucking changes and barrel cleaning
SRS Scorpion Piston
The Stalker Scorpion piston features an extremely modular design developed from scratch. It offers all the options players could want for their SRS piston. It is a unique concept where six weights form the piston body itself. Since the piston is built from these weights, it can also be extended with additional weights (short stroke), reducing cylinder volume and joule output accordingly.
Morpheus 420mm Inner Barrel
The Morpheus Hybrid Barrel is made from highly durable SUS304 stainless steel and features a Dualbore tapered end-crowning to enhance range and accuracy.
We chose stronger, more durable seamless SUS304 steel to raise the standard. Most brands use SUS303 seamed steel because it is easier to machine. However, SUS303 stainless steel has reduced corrosion resistance due to its composition optimized for machinability. SUS304 is harder to machine but offers superior durability and excellent corrosion resistance.
Fluted Teflon Cylinder
This cylinder is a fluted Teflon version of a standard cylinder and gives your SRS A1 or A2 an aggressive look. The inner coating is applied using a cold treatment process, ensuring the cylinder maintains its straight shape—unlike many heat-treated cylinders. Besides improved aesthetics, the special inner coating enhances energy transfer with the piston, which may increase joule output if your piston has the correct cup size.
- Fully compatible with Silverback SRS A1 and A2 receivers
- Thread compatible with both A1 and A2 bolt handles
- Compatible with aftermarket pistons
Rapax 2J+ RMS Spring
The Rapax Modular Spring (RMS) series is manufactured to the same high-quality standards as the Light Pull series. Designed for durability and performance, it delivers an excellent sniper experience. Compared to the Light Pull series, RMS springs are significantly shorter, require slightly more force to pull, and provide quieter shots. Additionally, RMS springs are electrically coated to prevent rust and ensure smoother operation on the spring guide.
If you have any issues or questions about this or other Stalker products, please visit our Stalker Owners Group on Facebook here: https://www.facebook.com/groups/329589544772075/
You can follow all live feeds, photos, and updates on Instagram, Facebook, or YouTube:
Facebook: https://www.facebook.com/StalkerAirsoftDesigns/
Instagram: https://www.instagram.com/stalkerairsoftdesigns/
YouTube: https://www.youtube.com/channel/UCWsBiSHlu-lbcnGQWAkeJWQ
For more information about Stalker products, tech, and crafting guides, please visit: www.stalkerairsoft.com
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1356 reviews
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Product Reviews
★★★★★ 5
Makes a great graduation gift
Format: Hardcover
It's a classic! I bought it for my granddaughter's kindergarten graduation. I've asked her teacher to write a note in it.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Absolutely the best in the series so far!
Format: Kindle
I've been wanting to get Dean's book since we met him in The Deal, and let me tell you, this book did NOT disappoint!
Dean is the playboy of the hockey team, he doesn't do relationships, and he just takes life as it goes. Allie is Hannah's best friend and roommate, and is a relationship type of girl. When she realizes her and her boyfriend are moving in separate directions and she can't do it anymore she breaks up with him. When she needs a place to hide out, Garrett offers up his house while they are away. She never expected that weekend to change everything for her.
Dean and Allie definitely have amazing chemistry, but one night together doesn't change things for them, or does it? Dean can't get Allie out of his head, and Allie knows she can't do a casual hookup, but they can't seem to keep away from one another. I loved how Dean finally wore Allie down, and how Allie finally got to have someone with her that understood her and was just as adventurous as she was. I don't agree with how she didn't want anyone to know about them, but I think the way everyone found out was perfect for them.
Dean and Allie's "relationship" is full of emotions, and you can slowly see this turning into something way more than what they thought it would be. Dean is amazing with Allie, he's supportive of her, he cares about her, and he's insanely jealous of anyone who dares look at her. Allie is loving how Dean makes her feel, and is also a huge supporter of his. For once in his life Dean opens up about himself and you can tell how nervous he was telling her about his ex, and everything involving the fall out of that situation. Their escapades are hilarious and sexy all at once. I loved watching them during Thanksgiving with Beau and his sister, where you can see that things definitely changed for them. I also adored their watching of the french soap opera, and all the little things they did together.
Not only does this book have a true romance that you can't help but fall in love with these amazing characters, but there are some absolute laugh out loud moments. When Logan walks in on Dean and "Winston" I spit my drink out I was laughing so hard. Also the hilarious Twilight references on imprinting! There is also a very serious aspect to this book that had me in tears. My emotions were definitely all over the place while reading this book, and I must say I think I love Dean more than Garrett, and he's been sitting at the top of my BBF list for a long time!
It's been a long time since I've read a book that I absolutely loved both of the main characters. I felt so connected to them, and their group of friends, that I thought I was right there with them experiencing their love, their laughs, and their heartbreak. This book definitely took me on one hell of a ride. I can't remember laughing so hard one moment, swooning and falling in love, and then balling my eyes out, only to have my heart put back together at the end. This is a beautifully written story and I could NOT put it down. I am definitely looking forward to Tuck's book, especially with the bomb-shell he dropped at the end of Dean's story!
Even though this book can be read as a stand-alone, I highly suggest reading each of the previous two books in this series, so you can get a good feel of how much Dean has changed since we met him, as well as how the group dynamic works. Each one of the books are 5 star reads, and trust me, you will definitely fall in love with Garrett, Logan and Dean!
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Reviewed in the United States on January 12, 2016
★★★★★ 4
The Good, The Bad and Everything In Between
Format: Kindle
Another excellent entry: The Off-Campus series is among the very, very best in new adult romance and there is little that isn’t done well in this entry.
Dean DiLaurentis is charged with watching out for Allie, Hannah’s roomie, one weekend while everyone is gone for various reasons - with, of course, the obligatory threats to his penis if he were to touch Allie. She’s just gone through a painful breakup with her boyfriend from book one, since they’ve had a fairly tempestuous relationship, she needs some time away from her apartment, where he’s been trying to get her to change her mind.
Of course, Allie and Dean are young, hot, single and there’s tequila. When you do the math, it’s fairly obvious that yes, Slot A goes into Tab B, and yes, romance happens. I love their banter, the humor throughout really establishes these characters and their friendships and makes the ride all the more enjoyable. Speaking of riding...
Dean’s what I expected: Dean’s the manho who beats all the previous manhoes in this series. He makes no apologies and I loved that he didn’t. He’s intrigued with Allie but he isn’t in love from the moment he lays eyes on her. When he falls, though it’s hard and it’s clearly life-altering. His moments with his friend Beau when they discuss his issues with little Dean (I can’t stop giggling at that silliness) were priceless.
He has a good journey towards adulthood, though I was saddened by the events that led to this character growth. It was the perfect (sad yet realistic) touch of bitter to make the sweet all the richer.
Allie was a surprise: I’ll admit, this is mostly because I didn’t remember her. Allie isn’t a big part of the first book and what I did remember of her was a bit flaky. I loved getting to know her and seeing what made her tick and as with Ms. Kennedy’s previous heroines, there is more than meets the eye. She’s concerned about being slut-shamed by the prospect of no-strings sex, considering she’s only ever been in committed, long term relationships, so I love that she has to learn to accept that there’s nothing wrong with two consenting adults doing what they want to do, damn public opinion. I found it an interesting twist that the only person truly slut-shamed is Dean, by other men and women.
Beats played out as I expected: If I have any issues with this is, while it is entertaining, charming, and funny, it also felt the same as the earlier books, which were also entertaining, charming and funny. When the quality is so high, that’s not a horrible thing, but I can’t help but struggle to keep each set of heroes and heroines separate in my mind. That said...
I’m really intrigued by where this series is going next: The setup for the next book is markedly different and it has me really eager to see how Ms. Kennedy handles it. The heroine for the next book is NOT in the mold of the earlier women and the hero is a bit of a wild card, since he has been more on the periphery so far. I’m looking forward to seeing what they have to contribute to this universe.
The Bottom Line
This is an excellent new adult romance with likeable characters, funny banter, hot sex scenes and room for the ‘verse to grow. If you haven’t read Ms. Kennedy’s series, I highly recommend it.
**ARC provided by author for review**
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Reviewed in the United States on January 14, 2016
★★★★★ 5
Ms. Kennedy Scores Again!
Format: Kindle
I am absolutely addicted to Elle Kennedy’s Off-Campus series. When I picked up The Deal last year I had no idea what to expect. I love her Navy SEAL series but a New Adult? I have to say, I fell so hard for that book it was ridiculous. Don’t tell anyone but I think I might even love this series more. Ack! I’m an adult. I’ve been out of college for more years than these characters have been alive! What’s wrong with me? What’s wrong with me is I’m a sucker for young love stories that have substance, well-developed characters, witty dialogue, and just enough angst to make it interesting without making me want to kill myself. And this is exactly what we get with Off-Campus. It’s not a given that each book in a series will top the last, or even equal its predecessors, but Ms. Kennedy has blown that theory out of the water. The Deal, The Mistake, and now The Score are all deliciously entertaining. I can’t say I love one more than the other because they are all unique. Each book focuses on one of four members of Briar University’s hockey team, all roommates in what I imagine in my head to be a large, rambling off-campus house. These guys are hardcore athletes, so of course, they’re gorgeous, sculpted of yummy muscles, confident, and can pretty much snap their fingers and the girls come running. But under those pretty exteriors and horndog antics lie endearing personalities. The thing I love most about the four guys sharing the house is they all have each other’s backs no matter what the circumstances. When it’s time to man up, be mature, and offer advice they excel at it. I love these guys. They’re also hilarious as hell.
The Score is book 3, featuring self-professed man-whore Dean Di Laurentis and Allie Hayes, Hannah’s best friend (from book 1, The Deal) . These two couldn’t be more different. According to The Life of Dean, there are no repeat performances with girls. Ever. He’s not remotely interested in anything that involves the dirty word relationship. Allie, on the other hand, has dated the same guy for four years. Granted, they’ve broken up four times but this time, it’s for real. She’s even high tailed it out of the dorm she shares with Hannah and is hiding out at the guys’ house for the weekend. The couples are out of town, which leaves only Dean at home. Allie can surely smack down on his ridiculous flirting. But after some well-deserved tequila shots and a joint or maybe two, things get blurry and…
"The memories come crashing back in vivid Technicolor. The terrible movie. The tequila shots. The… rest. I slept with Dean last night. Twice. My heart beats faster as I stare up at the ceiling. I’m in Dean’s room. There’s an empty condom wrapper on the end table. And… yep, I’m naked."
What surprises Allie, even more, is that she seems to recall enjoying herself. A Lot. She’s got a kinky streak that her ex wasn’t on board with but Dean…wow. Regardless, it was beyond wrong and Hannah will kill her if she finds out, so Dean and Allie make a pact to keep it between them.
Only problem is, Dean can’t stop thinking about Allie. It surprises the crap out of him because this is certainly a first but he needs, at least, one more taste.
"After last night’s performance, Allie Hayes proved that she’s fully capable of leaving her mark on a man. Jesus. That girl can f***. Damn, and now my dick is semi-hard. It’s been doing that all day, chubbing out every time I think about Allie."
Likewise, Allie can’t stop thinking about Dean. When Dean begs for more, she’s shocked. Maybe what she needs is indeed a fling. She may be a card-carrying member of the Team Boyfriend, but it hasn’t done her any favors in the last few years. A change might be good. But can she handle it?
Allie and Dean are hilarious together. She isn’t the starry-eyed coed type he’s used to. She doesn’t say How high? when he says Jump. Their verbal sparring is exquisite! It’s not only entertaining, it’s also revealing. The more she treats him with nonchalance the more he falls for her. She’s not being a tease. She’s being realistic. Dean isn’t a long term keeper. He’s rich, spoiled, and gets what he wants. He’s only hanging around because she isn’t begging for his attention. Besides, she’s spent four years as a drama major, she’ll be graduating soon, and needs to focus on her acting career. But Dean is relentless, being all adorable and sexy, watching French soap operas with her and generally making her forget about her ex. Plus, Dean is just so damn HOT it’s irresistible.
Dean is on a fast track to win over Allie. He can’t explain this all-consuming fascination and need and he doesn’t care. What little Dean wants, big Dean does his best to procure. Allie might consider this thing between them merely a fling but that’s not how it’s going down if he can help it. She makes him want to be a better man and, I must admit the more we learn about Dean, the harder I fell in love with him. He’s put on a good act for a long time; a Richie Rich man-whore who skates by on his charm and looks when in fact, he’s extremely intelligent, caring, and kind.
Ms. Kennedy has once again given us another exceptional story that is not only fun, witty, and chock full of sexy chemistry. Unexpected and shocking surprises deepen the tension and pull at the heartstrings yet are by no means superfluous. The writing is beautiful, tight, fast-paced, and so entertaining I didn’t want it to end.
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Reviewed in the United States on January 16, 2016
★★★★★ 4
4 stars
Format: Kindle
Overall Opinion: This was a fun read. I liked it. The banter and friendship these two had was great, and I loved how Allie knocked Dean off his feet. My main criticisms are that we really didn't need to experience the almost threesome at the beginning. I mean -- we get it...he's a Manho! BUT I didn't need to know descriptive details! The other is that I needed a jump ahead epilogue -- like I always do ;). They had some great things lined up for their futures, but I really wanted to see how it all went for them when they were older.
Brief Summary of the Storyline: This is Allie and Dean's story. Allie has (yet again) broken up with her boyfriend, and turns to her best friend Hannah (who we met in the first book The Deal). Hannah is out of town with her boyfriend, Garrett, and he offers to let Allie stay at his house to avoid the ex that keeps on texting and saying that he is coming over. That is when she runs in to Dean because he lives with Garrett. They spend the rest of the evening together with Dean being deemed her relationship coach with the job of keeping her from texting/calling her ex and taking him back. They end up getting drunk and sleeping together. Dean is ruined after that night for other women and is hooked on Allie. They start a friendship-with-benefits of sorts that of course turns into more. There are some laugh out loud moments, some sad moments, some sexy moments, and some sweet moments...and the couple get their HFN ending.
POV: This alternated between Allie and Dean's POV.
Overall Pace of Story: Good. It flowed well, and I didn't skim. The major drama did happen later in the book than usual, so it was cutting it close for things to get back to good IMO, but I felt like it was sufficiently addressed and handled.
Instalove:No. They had some good development before they were into love status.
H rating: 4 stars. Dean. I was surprised I'd like him so much, but I really did. We got to understand why he was the way he was regarding his sexual history, so that made him a lot more likable. I loved his interactions with the kids, and he was an overall good guy regardless of his past sexual acticities.
h rating: 4.5 stars. Allie. I really liked her. She was super sweet, a wildcat in the bedroom, and she was really ambitious.
Sadness level: Low/moderate. I had one time that I teared up, but I didn't need tissues and it didn't turn into an ugly cry.
Heat level: Moderate. They had great chemistry and had some steamy times (some were just mentions of the experiences so it didn't become just about the sex).
Descriptive sex: Yes.
Safe sex: Yes. Condoms were used until they were in a committed relationship, and then testing and birth control discussions happened.
OW/OM drama: Surprisingly no for OW, but yes for OM. The h's ex showed up and texted trying to win her back.
Sex scene with OW or OM: Yes
Closure: This didn't have enough closure for me at all. I really wanted a jump ahead epilogue to see their lives when they were older. I would call it a HFN ending (which I think is the norm with this series).
How I got it: I paid the $4.99 on Amazon.
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Reviewed in the United States on January 12, 2016