DoubleStar ACE FSM Folding Stock Mechanism Standard A500K
Fits between the receiver block and modular stock
Can fold left or right
With Boss
Adds .75″ to length of pull
Weighs 3.5 oz
Matte Black
5 reviews for ACE Folding Stock Mechanism FSM
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Bryan Foster (Ohio, USA) –
The ACE FSM works perfectly. Easy install, feels sturdy. Shipping to Ohio was amazingly fast and trouble-free. Bitcoin payment was secure and direct—no complaints at all
Dennis Friedrich (Berlin, Germany) –
Well-made mechanism that fits my AK setup. Shipping to Germany was surprisingly speedy. Used Bitcoin to purchase for added privacy, which worked without a hitch.
Sarah MacLeod (Colorado, USA) –
A quality product—smooth action and robust build. Shipping was seamless into Colorado, including all tracking updates. Paying with Bitcoin was straightforward and privacy-friendly.
Pierre Lefevre (Montreal, Canada) –
Highly recommend this folding stock mechanism, especially for modular builds. Ghost Guns delivered to Montreal with zero delays. Bitcoin checkout was easy—appreciated the extra layer of discretion.
Michael O’Brien (Oregon, USA) –
Solid and reliable. Install instructions were clear, and the folding mechanism works as advertised. Shipping to Oregon was effortless. The Bitcoin payment option made for a smooth, private transaction.