Leapers UTG Pro mil-spec 6-position buffer tube has the standard QD socket. The release lever was stiff initially - took some adjustment cycles to break in. Now slides positively. Threads to a standard castle nut. Functional budget option.




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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.
Based on build data
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Strike Industries Extended Bolt Catch | 9 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 7 | |
| LBE Unlimited Aluminum AR-15 Trigger Guard, Black - AR15TG | 7 | |
| Zro Delta Ar-15 Selector Mil-Spec | 6 | |
| LBE Unlimited AR-15 Bolt Catch Assembly, Black - ARBCASY | 5 | |
| TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031 | 5 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 50% |
| Mid-Length | 50% |
Builds in the community that include the Leapers Utg Pro Mil-Spec 6-Position Receiver Extension Tube
| Build | Parts | Total |
|---|---|---|
![]() | 22 | $1252.50 |
![]() | 28 | $1071.67 |
![]() | 20 | $1518.05 |
![]() | 27 | $2122.24 |
![]() | 21 | $597.09 |
![]() | 14 | $803.46 |
![]() | 25 | $1403.35 |
2 global ratings
Leapers UTG Pro mil-spec 6-position buffer tube has the standard QD socket. The release lever was stiff initially - took some adjustment cycles to break in. Now slides positively. Threads to a standard castle nut. Functional budget option.
works great. paint on the lever scratched easily