Knight's Armament
KAC's shortest 5.56 QDC can at 4.5 inches and 12.7 oz, a lighter mini-CQB trade against the CRS-2
Marlin
Marlin Mad Pig Customs Model 1894
2 shared compatibility tags
Springfield Armory
Springfield Hellion 16"
3 shared compatibility tags
Springfield Armory
Springfield Hellion 18"
3 shared compatibility tags
Springfield Armory
Springfield Hellion 20"
3 shared compatibility tags
Dark Storm Industries
Dark Storm DS-15 Typhoon Fixed Magazine 5.56
3 shared compatibility tags
SIG Sauer
SIG MCX-R Regulator 16" 5.56
3 shared compatibility tags
Add the Knight's Armament MCQ-2 5.56 to your build and see how it enhances your platform.