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
Available Merchants(6)
Prices checked
Price Alert
October 2026 on GunPartPicker
Leapers UTG Model 4 Combat Ops S2 Stock KIT 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM ranked #52 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 #84 of the 560 stocks and braces builders have added. Builds with this stock are mostly chambered in 5.56 NATO (64%, then 300 Blackout 21%), split between pistol-length (56%) and mid-length (33%) gas systems, and mostly AR-15 (80%, then AR-9 13%).
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 5 of the 6 retailers we track have it in stock. It dipped to $54.99 at Palmetto State Armory for a stretch in October 2026, well under its usual $64.97, so sales do come around. Buying today, the lowest price is $55.22 at AT3 Tactical, 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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Frequently Built With
The part most often added in each category by the builds that include this one
ALG Defense Qms AR-15 Trigger Set
LMT MARS-LS PDW Complete Ambidextrous AR-15 Lower Receiver
PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-LOK Upper w/o BCG or CH - 516447044
FAXON Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR
Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
Mdt Pistol Grip - Black
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 Model 4 Combat Ops S2 Stock Kit 6-Position Mil-Spec Stock Assembly, Black - RBUS2BM
| Build | Parts | Total |
|---|---|---|
 | 23 | $2427.64 |
 | 8 | $1303.55 |
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