Leapers UTG Pro mil-spec 6-position buffer tube kit has the profile I wanted for a budget build. Aluminum tube threads to a standard castle nut. End plate, castle nut, and spring included. Locks at each position positively.



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Leapers
Overview
The Leapers UTG Pro Mil-Spec 6 Position Receiver Extension Tube Kit is a complete buffer tube assembly designed for carbine-length applications. Made from 6061-T6 aluminum, this Mil-Spec buffer tube features six adjustable positions to provide customizable length of pull, which is essential for achieving optimal ergonomics for different shooters. This product is commonly found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, making it a practical choice for those looking to enhance their AR-15 configuration.
Based on build data

Strike Industries Extended Bolt Catch

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B

B5 Systems Trigger Guard ATG-001-01

Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C

Timber Creek Outdoors Ambidextrous Safety Selector - Black

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Strike Industries Extended Bolt Catch | 27 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 26 | |
| B5 Systems Trigger Guard ATG-001-01 | 20 | |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | 19 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 19 | |
| Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD | 17 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 7.62x39mm | 100% |
Builds in the community that include the Leapers Utg Pro Mil-Spec 6 Position Receiver Extension Tube Kit - Black
| Build | Parts | Total |
|---|---|---|
![]() | 20 | $802.94 |
![]() | 18 | $2022.79 |
![]() | 21 | $1340.82 |
![]() | 20 | $929.65 |
![]() | 19 | $1346.38 |
![]() | 24 | $3551.03 |
![]() | 27 | $3119.82 |
1 global rating
Leapers UTG Pro mil-spec 6-position buffer tube kit has the profile I wanted for a budget build. Aluminum tube threads to a standard castle nut. End plate, castle nut, and spring included. Locks at each position positively.