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and 4140 steel extractor
The RF welded seams of the 70D TPU-coated nylon keep the weight down without giving up strength
Incorporating a built in recoil lug and two socket head cap screws and clamp foot
crush-resistant
13° Angle For Improved Ergonomics
AERO M4E1 ASSEMBLED UPPER FDE Finger Stop and 4140 steel extractorThe M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075 T6 Aluminum and precision machined to work with all mil spec AR15 parts. Features : Works with standard AR15 components Perfect for your custom
