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FAB Defense R.A.P.S - Rapid Adjustment Precision Stock - Collapsible
As Low As $132.49 Save Up to 26%
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Expert Review

Great for High Mounts

by Matt S., Gear Expert from IL, United States Written on June 17, 2022
If you run higher mounts like 1.7"/1.93"/etc then having an adjustable cheek riser is very helpful.

This stock is very comparable to the B5 Precision Stock but I find the RAPS to be lighter and it offers good real estate for the support hand when shooting supported by a bipod or barricade. Definitely lighter than a Magpul PRS stock.

The polymer fit and finish is about what I would expect. It isn't perfect but I have definitely experienced worse. The edges don't affect performance and 15min of light sanding removed any potential hazards or hot spots.

Easy to adjust the stock and then lock those adjustments into place so you get a consistent cheek weld and presentation every time.
Most Helpful Positive Review Half the Weight of the Magpul PRS and $100 Less - Win
I was hesitant to buy based on some of the reviews here, but I could care less about a "sanding mark" or whatever. Honestly, this thing is perfect for me. Lightweight, long length of pull and adjustable cheek is perfect for Thermal hunting. Love everything about this stock.
Most Helpful Negative Review Too pricey for the lack of fit and finish
I took a chance since it had all the features I wanted and was sorely disappointed. The biggest issue was fit and finish, there are very apparent trimming/sanding marks. The picatinny cover on mine had knife marks where they trimmed way too much material and then tried to I guess sand it but never m...
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Loose and noisy stock

by JPB, Verified Owner from AL, United States Written on June 16, 2026
I installed this on my 338 ARC build. Looks nice, feels nice, but is just too loose. Even after adjusting the set screw to tighten the stocks grip on the buffer tube, it still rattles. It would not be a good choice for a precision rifle unless you plan on tightening it so that it does not move at all, not even to collapse or extend. This would've been better as a fixed stock on a rifle tube.
Would recommend: No
Was it helpful to you? Yes | No

Excellent Price

by Rock Deer, from ID, United States Written on June 10, 2026
I can always count on optics planet having all of the firearms related items i need at an excellent price!
Pros:
  • Can always count on OP for providing the best products at excellent prices.
Cons:
  • N/A
Would recommend: Yes
Was it helpful to you? Yes | No

Competitive stock for precision shooting.

by Paul Black, Verified Owner from OH, United States Written on May 19, 2026
I waited the longest for one of these in gray. I was not disappointed. The buttstock adjustment wheel is undersized and makes it hard to turn. The snap in place keeper for the quick deploy takes a second to learn. The 2 flaws are nothing to worry about after setting your weapons comb. A very competitive stock for those on a long-range hunting quest and low on budget. A+
Pros:
  • Feature packed
Cons:
  • Hard wheel to adjust length
Best Used for:
  • Precission shooting
Would recommend: Yes
Was it helpful to you? Yes | No

FAB Adjustable Stock

by Michael Heimerl, Verified Owner from CO, United States Written on May 2, 2026
Easily adjustable. Fits the look and performance of my build.
Would recommend: Yes
Was it helpful to you? Yes | No

Great precision rifle stock

by verdeLV, from GA, United States Written on December 15, 2025
The product is true to the name, you can rapidly adjust this stock that's designed to optimize your precision weapon system. I used this stock in a custom Ultradyne UD7/Ruger American build and it fits like a glove and compliments the different components of my build. FAB Defense does a great job of sending this product out with a relevant series of components that allows it to seamlessly integrate with many different builds. Using a mil spec buffer tube and a folding stock adapter, I was able to create a stock config that fits my build perfect and harmonizes with all the other pieces of my build.
Pros:
  • sturdy design
  • Compatible and manageable
  • cheek riser and pull adjustment good
  • compatibility with different footprints
Cons:
  • length of pull and cheek riser uses same actuator
Best Used for:
  • Mil Spec + Setups
  • precision shooting
Would recommend: Yes
Was it helpful to you? Yes | No

Precision stock

by Ronald, from NC, United States Written on May 13, 2025
Nice stock for the money it has good adjustments as far as pull length and cheek riser
Pros:
  • Well built stock
Cons:
  • Has some slop if used on mill spec tube
Would recommend: Yes
Was it helpful to you? Yes | No

FAB Defense R.A.P.S- Rapid Adjustment Precision Stock- Collapsible

by Fred, Verified Owner from KS, United States Written on March 2, 2025
Nice stock with lots of adjustment. Fit and finish where as expected.
Would recommend: Yes
Was it helpful to you? Yes | No

Not a precision stock due to poor fit

by Dp, Verified Owner from WI, United States Written on September 17, 2024
Unfortunately the fit of this stock is unacceptable at least on a mil spec size buffer tube. Yes, the tightening skrew helps make the stock not rattle however when fully extended the stock still cants depending on your grip pressure. Meaning: if you hold the front of the rifle with your hand and pull the stock into your shoulder you can move your trigger hand to move the grip up moving the barrel down or pull down moving the barrell up. So essentially with every shot the recoil could move your sight picture. I wouldn't want this on a general blinking g rifle let alone one intending to be a precision set up as the stock is intended. I plan on returning.
Pros:
  • The build seems good
  • I like the features and what the stock could be if it was solid on the tube.
Cons:
  • The stock cants up and down when fully extenedand design
Would recommend: No
1 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Fab Defense R.A.P.S.-C stock.

by Allensteinskibaum, Verified Owner from FL, United States Written on June 13, 2024
Upon initial handling it seems well made.installation onto a milspec stick extension is when I realized how loose it fits (rattles). Yes the is a screw that needs to be tightened to take up the slack once installed but doing so made it too tight to extend/collapse as designed. I’m adding a Law Tactical folding stock adaptor so I will be able to tighten the take up screw and not worry about extension/collapse. I’m pretty disappointed honestly.
Pros:
  • well made
Cons:
  • Loose and rattly despite tensioning
Would recommend: No
4 of 5 found the following review helpful.
Was it helpful to you? Yes | No

Great fit and finish

by A-Aron, Verified Owner from NM, United States Written on April 24, 2024
Caught it on sale for $160. Picked this for a multi-role AR build and was very impressed by the fit and finish. Adjusting is easy. Once the adjustments are set this thing is very quick to open and close. Only two trips to the range so far but the adjustments have not changed and I banged it around a little. Has some good weight to it so it balances a bull barrel pretty well. Lighter than the Magpul prs. So far I love this thing!
Pros:
  • Price
  • Fit and finish
  • Ease of Adjustment
  • quick operation
Cons:
  • Might be heavy for some lightweight builds
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.