Support Screw Spring - Scar® 16/17/Cypher/CypherX compatible

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Steel Barrel Screw Spring for Scar® 16/17/Cypher/CypherX Barrel Mounting System . Robust Spring Steel Construction. Made in the USA by IAC.  Replaces FN® part #F142220010. 

A total of 6 springs are required for a build (4 for the barrel, 2 for the picatinny rails).  Priced per spring.