Leapers UTG PROMil-spec AR-15 Stock, Black - RBUS4BMS
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Leapers
Overview
The Leapers UTG PROMil-spec AR-15 Stock is a reliable polymer option designed to enhance the stability and control of your firearm. This stock is tailored for builders looking to optimize their setups, especially in mid-length gas system configurations, ensuring a snug fit and effective recoil management. You’ll often find this stock in builds chambered for the 5.56 NATO caliber, making it a popular choice among those looking to maximize performance on the range.
Specifications
August 2026 on GunPartPicker
Leapers UTG PROMil-spec AR-15 Stock, Black - RBUS4BMS ranked #98 of the 204 stocks and braces builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #82 of the 445 stocks and braces builders have added. Builds with this stock are nearly all chambered in 5.56 NATO, split between mid-length (50%) and carbine-length (38%) gas systems, and mostly AR-15 (86%, then AR-10 14%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 4 of the 5 retailers we track have it in stock. It dipped to $24.97 at KY Gun Company for a stretch in August 2026, well under its usual $27.97, so sales do come around. Buying today, the lowest price is $27.97 at BattleHawk Armory, above August's low of $24.97, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 18 builds that include this one
Timney Triggers Targa Two Stage AR-15 Trigger Long 1ST Stage Straight Bow
Ke Arms Ke-15 Forged Mil-Spec Complete Lower Receiver 5.56mm
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Troy Industries Ambi Safety Selector Assembly Direct Thread - Semi Auto
Timber Creek Outdoors AR-15 Takedown Pin Set - Red
B5 Systems Trigger Guard ATG-001-01
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.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 3 →Builds in the community that include the Leapers UTG PROMil-spec AR-15 Stock, Black - RBUS4BMS
| Build | Parts | Total |
|---|---|---|
 | 16 | $885.41 |
 | 32 | $2816.77 |
 | 13 | $1050.86 |
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