RA-312 by Rise Armament with a RA-535 drop-in trigger. (Shown below)

RA-312 by Rise Armament with a RA-535 drop-in trigger. (Shown below)
RA-312 by Rise Armament with a RA-535 drop-in trigger. (Shown below)

RA-312 by Rise Armament with a RA-535 drop-in trigger. (Shown below) -- source link


#rise armament#ra-312#ra-535#drop-in trigger#competition
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