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245mm Free Float Rail System Handguard
The Centurion Arms C4 Rail System is a 2 piece free float rail that
The nature of this design allows it to drop right on top of the MP5s standard 3-lug type flash hider like a QD attachment
This New Metal Chamber Set have three functions in one:
Strike Industries AR Enhanced Ultimate Dust Cover for M4 GBB Series (Standard/ Dark Earth) Length-(mm)_503 245mm Free Float Rail SystemThe patent pending SI UDC enables users to attach and detach the cover in 5 to 10 seconds with ease (stock dust cover will take more time to remove)! It is constructed of a high density polymer making it more durable and functional than the traditional dust covers. The Ultimate Dust Cover features an adjustable detent set screw in order to compensate wear on the receiver and increase or decrease opening power (To adjust detent: use small flathead
