Description
Please Note: Image may not be the actual representation of the item. Please verify the item by reading the complete description before purchasing.The SI Carbine Flatwire Spring is an economical, easy upgrade to any AR system with a carbine buffer system. The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring.Increased bolt load, in addition to decreased compression force increases reliability in cycling.
