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Details of A3 Tactical Inc. Upper Receiver For Brn-180 Pistol
TRIAD BULLPUP CHASSIS FOR BRN-180 UPPER RECEIVER PISTOL FEATURES: 6061 aluminum front trigger housing/receiver 17-4 stainless MIM front trigger with QPQ coating 4140 steel Anti-walk trigger pins x 3 A3 Tactical ambi selector with detent spring and detent 17-4 stainless front trigger linkage with QPQ coating 7075 aluminum transfer bar and rear linkage, bushed with 841 oil-embedded bronze bushings Acetal Delrin guide and trigger actuator 30% fiber-reinforced injection-molded Zytel polymer main chassis housing. 30% fiber-reinforced injection molded 1.50" extended butt-plate (rifle only) 4140 steel and 7075 aluminum threaded c Mfg: A3 Tactical Inc.