MK-16 13.5` GBB
MK-16 9.3` GBB
VIPER TECH M16/M16A2 20 Inch GBB
VIPER TECH MK-12 MOD 1 GBB (W/Crane Stock)
VIPER TECH MK-12 MOD 1 GBB
VIPER TECH M16/M16A1(M653) GBB
KAC Style Magazine Catch Assembly|KAC彈匣卡榫總成
A1 Style Safe-Semi-Auto Selector| A1保險-半自動-全自動射擊選擇鈕
M4 Style Safe-Semi-Auto Selector| M4保險-半自動-全自動射擊選擇鈕
KAC Style Ambidextrous Safe-Semi-Auto Selector Assembly|類 KAC 保險-半自動-全自動 雙邊射擊選擇鈕總成
Safe-Semi-Auto Selector Assembly (A1 Version)|保險-半自動-全自動 射擊選擇鈕總成(A1版)
Auto Sear Pin | 自動撥片軸銷