SIG SAUER  SLX556C-QD 5.56MM SUPPRESSOR  The SIG SAUER SLX556C-QD is the compact version of SIG’s low-back-pressure SLX suppressor, designed for supersonic 5.56 NATO rifles and short-barreled...

SIG SAUER  SLX556-QD 5.56MM SUPPRESSOR  The SIG SAUER SLX556-QD is a hard-use 5.56 NATO suppressor engineered for low back pressure, reduced gas blowback, and extreme durability. SIG’s advanced...

Colt  Ar-15 SP1 RR 16 inch Upper Fail Zero Full Auto bolt 5.56mm

Colt  Ar-15 SP1 RR 11 inch HB Commando A1 Upper This has the original plastic coated aluminum stock and the castle nut is still peened / staked. 5.56mm

Colt  Ar-15 A2 Sporter II RR 11 inch HB Commando A2 Upper Originally registered by LaFrance Specialities 5.56mm