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UTG Leapers Pro TLU001-KIT Mil-Spec Receiver Extension Tube Kit AR-15 6061-T6 Aluminum
Leapers Mil-Spec Receiver Extension Tube Kit is made from 6061-T6 aluminum with rolled threads and a matte black hard coat anodize finish. Included is a 6 position extension tube, carbine buffer, buffer spring, receiver end plate, and a castle nut. This kit is made in the US.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral overview of AR-15 buffer systems, covering carbine vs. rifle receiver extensions, buffer weights, springs, and how these parts affect cycling and recoil.
5 min read