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7.5" 300 Blackout Upper Receiver with AR-15 Free Float Quad Rail. This Ar-15 upper is just what you need for your ar15 pistol build.
8" 4150 300 Blackout Barrel
1:8 Twist
5/8-24 Threads
Mil Spec 7075-t6 Aluminum Receiver
Dust cover, Forward Assist
m4 feed ramps
a2 Flash hider
.750 gas block
Pistol gas length
7" Free Float Quad Rail
- Item #: 7.53blk
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