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FAB Defense Rapid Adjustable Precision Buttstock
As Low As $158.30 Save Up to $13.70
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Most Helpful Positive Review lighter, less expensive
I chose this stock over other stocks for 3 reasons. 1) Does everything the Magpul PRS does. 2) Less expensive than other precision stocks with no downgrades. 3) It's lighter than the rest, with all the same features. Save yourself time and money and click buy.
Most Helpful Negative Review Good stock but has big design flaw
This stock fits only for all comercial AR15/M4, 6 position tubes and A2 tube which does not have anti-tilt rib. For All AR-10 with 8" tube (Vltor A5, POF P-308 etc.) with rib this stock WILL NOT fit without machining modifications.
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FAB Defense RAP

by tired of waiting, Verified Owner from FL, United States Written on November 20, 2025
Beautiful buttock but If you don't have tall rings on your scope... You will be not be able to use this on a basic rifle and It's really heavy ppl 3# ish and with my 458 socom upper and silencerco 46m suppressor and night vision optic makes a perfect bench rest rifle. It's is not something you would want to carry around with you in a shtf event. Keep your rifle light.
Would recommend: Yes
Was it helpful to you? Yes | No

Ar-10 Project

by Reece, Verified Owner from NC, United States Written on September 19, 2025
Super pleased with the FAB precision stock. Was easy to install and works great. Super pleased with Optics Planet etc...Will be doing more business with them in the future.
Would recommend: Yes
Was it helpful to you? Yes | No

Solid Built!

by Dr Hightide Warning, Verified Owner from CA, United States Written on July 31, 2025
The FAB Defense RAPS Buttstock is awesome for my AR-10! It’s super light but feels tough as nails. The 1Latch system makes adjusting the length and cheek rest a breeze with one hand—perfect for switching positions fast. The LOP memory snaps back to my setting every time, which is clutch for consistent shooting. The cheek rest adjusts high enough for any optic, and the rubber buttpad keeps it comfy and stable. Install was easy, and it fits both MIL-SPEC and commercial tubes. Love the hidden Picatinny rail for a monopod, too. It’s a solid, affordable upgrade that punches way above its price. Totally recommend it!
Would recommend: Yes
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Great Stock

by Thresher, Verified Owner from FL, United States Written on May 25, 2025
I haven’t taken it to the range yet, but I’ve laid up on my living room floor and it’s very comfy. I love the adjustment. It’s a very comfortable stock compared to others I’ve used. It also looks the coolest of all the PRS stocks available right now. The memory is awesome. Love it
Would recommend: Yes
1 of 1 found the following review helpful.
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Nice Stock good value

by Sparky, Verified Owner from WI, United States Written on March 22, 2025
I like it for shooting from a bench. Seems well made. It’s good that it has adapters for carbine and rifle buffer tubes.
Would recommend: Yes
Was it helpful to you? Yes | No

Great buttstock.

by Alio, from CA, United States Written on March 22, 2025
I was building my 1st AR. The fixed stock I had ordered from a different place was too small. This one fit perfectly for a bigger guy. Didn't even need to adjust it but the adjustment made it more comfortable for sure. Multiple spots to attach a sling.
Would recommend: Yes
Was it helpful to you? Yes | No

Great fixed stock

by Alio, from CA, United States Written on March 15, 2025
I'm a bigger guy and the original fixed stock I got was too small. I couldn't get a good line of sight had to really tweek my neck. This stock is great. Alone it's already a little longer but the adjustments make it so much more comfortable. Highly recommend
Would recommend: Yes
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Needed an adjustable buttstock for a rifle chassis...

by Bri, Verified Owner from PA, United States Written on March 6, 2025
I needed an adjustable buttstock for a rifle chassis and was looking for a lower cost alternative to the expensive BRAND names... This stock was on sale for a VERY attractive price and I figured I'd give it a go.
Very good build quality. Seems solid and will probably take any abuse I give it. Latches and adjustment mechanisms seem adequate and do what they are supposed to.
No written instructions... Had to watch Youtube videos to learn what I needed about it. Very tight fit to rifle extension tube. I actually had to sand some inside the adapter to get it to a nice friction fit that was manageable...
Pros:
  • Very well made
  • Great value when on sale
  • Comes with 3 different adapter
  • QD points on both sides
Cons:
  • VERY, VERY tight fit to extension/tube
  • No written instructions
Best Used for:
  • Any firearm that needs an adjustable but non collapsable buttstock
Would recommend: Yes
1 of 1 found the following review helpful.
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not a bad stock

by tim, Verified Owner from AR, United States Written on February 28, 2025
Ordered 2, one in black and this one in "tan". It looks really light in the pic. Its not. It matches fde cerakote pretty close, a little lighter but not bad at all. Optics planet had it priced right. If I had to pay msrp I would just get a prs. Mounted good and tight on a carbine tube. Im happy with it.
Would recommend: Yes
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decent for the price

by tim, Verified Owner from AR, United States Written on February 28, 2025
This seems like a pretty good stock, doesn't feel quite the quality of a prs, but I didnt spend prs $. Mounted solid on an a2 tube. Adjustments seem to lock up pretty good, lever is a little janky. Overall I'm happy with it.
Would recommend: Yes
Was it helpful to you? Yes | No
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