Upper Parts

Otter Creek Labs - SPR COLLAR, Black Short SPR locating collar for ops inc 12 model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a black nitride finish.

Otter Creek Labs - M4 Collar, Black Locating collar for M4 spec barrels and ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a black nitride finish.

Bauer Precision C Clip for a standard AR15 port door rod. 

Bauer Precision 5.56 Firing Pin Standard Firing Pin for all AR15 platform bolt Carriers.  

Bauer Precision 5.56 Firing Pin Retainer  Standard Firing Pin Cotter Key that holds the firing pin in the BCG

Bauer Precision Nitride Cam Pin for a standard 5.56 Bolt and Carrier. 

Bauer Precision 6.5 Grendel MPI Nitride Bolt Assembly  INCLUDES: Bolt Gas Rings Extractor & Spring  

Bauer Precision 5.56 MPI Nitride Bolt Assembly  INCLUDES: Bolt Gas Rings Extractor & Spring  

Midwest Industries Night Fighter M-lok, Handguard, Black, Fits Ar Rifles, Mi-nf10.5

5.56mm Lo-Pro Gas Block Barrel Stainless Barrel -556–1 in 7″ twist improved polygonal rifling              With 556 Noveske Match Chamber–Extended feed...

Noveske Infidel Lo-Pro gas block 13.7" Stainless Steel barrel This is one many quality barrels by Noveske, featuring a Staineless Steel heavy profile making it a great option for those looking for accuracy, heat decipation and relaibilty...

The barrel ships with gas block. This barrel is designed for our gas block that is 1" long (INCLUDED). A standard front sight base is 1.9" long and WILL NOT FIT. Barrel installation should be performed by a qualified gunsmith. Installation of the gas...