The KWA 1911 Breech Block is Part 27 for the M1911 Mk series GBB pistols. The breech base or chamber base fits both MkI, MKII, MKIII, and MKIV 1911 series gas blowback airsoft guns.
KWA 1911 Mk PTP Breech Block Part 27 Features:
-Precision Fit and Finish
-Guaranteed KWA Compatibility
KWA OEM Repair Parts are specifically designed for precision fit and finish in KWA GBB pistols and magazines. Keep your pistol performing like the day you bought it with KWA OEM parts