Mech Tech Systems CCU Glock 10mm Conversion Upper with 16" Barrel
Mech Tech Systems Carbine Conversion Unit (CCU) upper assembly configured for 10mm Auto and designed for Glock 10mm platforms (marked 'G20'). This CCU uses a straight blowback action and incorporates a top Picatinny rail for optics mounting.
Built around a stainless steel, button-rifled 16" barrel with a 1:16" right-hand twist, this unit includes an M4-style adjustable stock (not installed/attached as pictured) and a polymer forend.