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Jerry I. asked 2 years ago:
This quad rail system is designed to fit carbine-length Model 4/15 with a standard AR15 gas tube. It includes black rubber rail guards, and has a black anodized metal finish. Note-This quad rail system is designed to fit with standard AR-15 gas tube. The compatibility with any special piston system is not guaranteed. Made in the USA.
Jason L.
2 years ago
