[Last Edit: 2/7/2020 1:46:45 PM EST by westernsport]
Rankin Industries SP4 Coated Bolt Carrier Group Mil Spec M-16 AR-15 5.56 full auto version can be used in semi-auto rifles and pistols. This is for full auto or semi auto AR15, M16, and M4 rifles and pistols
No Lubrication Needed, Lifetime Warranty, Nothing Sticks to it, simply wipe off with a dry cloth.
Hardest, Slickest, Most Flexible Coating on the market today.
In Stock, Shipping Now
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