"Lightweight, adjustable composite submachine gun stock; adjustable fit significantly reduces weapon recoil during prolonged firing bursts."
Armat A4 Stabilizing Stock description (from Aliens: Colonial Marines - Arsenal Upgrades - M39 Submachine Gun - Armat A4 Stabilizing Stock)
The A4 Stabilizing Stock is a lightweight, adjustable composite submachine gun stock manufactured by Armat Battlefield Systems for the M39 Submachine Gun.



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