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
Available Merchants(4)
Prices checked
Price Alert
October 2026 on GunPartPicker
Leapers UTG PROMil-spec AR-15 Stock, Black - RBUS4BMS ranked #45 of the 245 stocks and braces builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #65 of the 560 stocks and braces builders have added. Builds with this stock are mostly chambered in 5.56 NATO (78%, then 300 Blackout 11%), mostly on mid-length gas (60%, then carbine-length 27%), and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today all 4 retailers we track have it in stock. Buying today, the lowest price is $27.97 at BattleHawk Armory, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Read the guide: AR-15 Stock Popularity Report →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
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Wilson Combat AR-15 Lower Receiver Forged
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Timber Creek Outdoors AR-15 Takedown Pin Set - Red
Troy Industries Ambi Safety Selector Assembly Direct Thread - Semi Auto
Strike Industries Extended Bolt Catch
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 builds →Builds in the community that include the Leapers UTG PROMil-spec AR-15 Stock, Black - RBUS4BMS
| Build | Parts | Total |
|---|---|---|
 | 16 | $952.70 |
 | 32 | $2784.27 |
 | 13 | $1064.85 |
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