Leapers UTG PRO Mil-Spec 6-Position Receiver Extension Tube
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Leapers
Overview
The Leapers UTG Pro Mil-Spec 6-Position Receiver Extension Tube is a carbine buffer tube designed to accommodate a variety of stock configurations, providing six positions for length adjustment. Made from durable 6061-T6 aluminum, this Mil-Spec tube ensures a robust connection between your lower receiver and stock, essential for reliable operation. This buffer tube is often found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a versatile choice for many AR-15 configurations.
Specifications
Available Merchants(6)
Prices checked
Price Alert
September 2026 on GunPartPicker
Leapers UTG PRO Mil-Spec 6-Position Receiver Extension Tube ranked #18 of the 49 buffer tubes builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #19 of the 67 buffer tubes builders have added. Builds with this buffer tube are mostly chambered in 5.56 NATO (74%), mostly on mid-length gas (65%, then carbine-length 25%), and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 4 of the 6 retailers we track have it in stock. Prices barely moved in September 2026, holding around $21.97, so there haven't been real sales lately. Buying today, the lowest price is $13.47 at Sportsmans Outdoor Superstore, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
LBE Unlimited AR-15 Mil-Spec Fire Control Group, Black - ARTRGRP
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
Zro Delta AR-15 Selector Mil-Spec
TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031
Wilson Combat AR-15 Lower Receiver Forged
Magpul MOE K2 Grip Polymer Gray
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 8 →Builds in the community that include the Leapers Utg Pro Mil-Spec 6-Position Receiver Extension Tube
| Build | Parts | Total |
|---|---|---|
| Combat ar-15 | 16 | $450.51 |
 | 22 | $1244.61 |
 | 28 | $1175.62 |
 | 20 | $1486.79 |
 | 27 | $2229.80 |
 | 21 | $648.84 |
 | 14 | $769.74 |
 | 25 | $1367.29 |
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