Leapers UTG Model 4 Combat Ops S2 Stock KIT 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM
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Leapers
Overview
The Leapers UTG Model 4 Combat Ops S2 Stock Kit features a 6-position Mil-Spec stock assembly designed to provide versatility in length of pull for various shooting scenarios. Constructed from durable aluminum, this stock assembly ensures a solid and reliable attachment to your AR-15 platform. Builders often incorporate this stock in tactical setups where adaptability and robust performance are essential.
Specifications
Leapers UTG Model 4 Combat Ops S2 Stock KIT 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM
August 2026 on GunPartPicker
Leapers UTG Model 4 Combat Ops S2 Stock KIT 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM ranked #61 of the 204 stocks and braces builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #91 of the 444 stocks and braces builders have added. Builds with this stock are mostly chambered in 5.56 NATO (67%, then 300 Blackout 33%), split between carbine-length (50%) and pistol-length (50%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. The best price crept up from $57.29 to $64.97 over August 2026. Buying today, the lowest price is $54.99 at Palmetto State Armory, which matches the best price we saw in August.
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 10 builds that include this one
LMT MARS-LS PDW Complete Ambidextrous AR-15 Lower Receiver
ALG Defense Qms AR-15 Trigger Set
PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-LOK Upper w/o BCG or CH - 516447044
Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
FAXON Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR
Diamondback Firearms .300 Blackout AR-15 Barrel - Nitride - 10.5"
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use 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 2 →Builds in the community that include the Leapers UTG Model 4 Combat Ops S2 Stock Kit 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM
| Build | Parts | Total |
|---|---|---|
 | 23 | $2389.67 |
 | 8 | $1575.33 |
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