S7 Tool Steel Barrel Extension Screw- Scar® 16/17/Cypher/CypherX compatible

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Hyper tough S7 tool steel barrel extension screws with a slick, black oxide finish. These are priced per screw (ie- buy 1, get 1 screw, buy 10, get 10 screws.) A bulletproof upgrade for your Scar® or new Cypher build. Replaces FN® part #F142310020.