What did the Strike PDW have in it ? That has the short buffer.
COMPATIBLE:
-AR-15 Mil-Spec receivers
-Angstadt Arms 9mm & PSA 9mm
NOT COMPATIBLE:
-Using a lightweight BCG may cause damage to PDW buffer
-9mm platforms not mentioned above unless you also purchase the Strike Industries AR PDW 9mm Buffer
[Thanksgiving Giveaway - #138 by Marcelo]
