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SI Defense .223 Generation 2 Upper Receiver
Re-distribute your light, laser and optic on your AR to the receiver for a better, balanced set-up on your rifle or pistol. If you do not want to use the rail, simply remove it and save the weight for a more streamlined look. Your can purchase your upper with or without a picatinny rail. The cost is only $10 more with the rail. The upper rail and mounting screws can be purchased separately for $18.
The upper receiver is CNC machined from 7075 solid billet and anodized per Mil-A-8625. Upper features shell deflector and a removable picatinny side rail mount.
There is no forward assist. The removable rail is machined from billet 7075 aluminum and has three 8-32 screws to mount it securely into place with a 3/32 allen wrench. Both the upper picatinny and the removable picatinny rail are built to MIL-STD-1913 specifications. The threaded holes in the upper receiver do not penetrate into the upper receiver bore, so you do not have to worry about any wear from protruding screws. The length of the picatinny rail is 5.025" The picatinny rail is compatible with the SI Defense HKG3 upper and the SI Defense .308 uppers.
Upper is compatible with SI Defense forged and billet lower receivers and most other manufacturers hardware and lower receivers.
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