Lbe Unlimited AR-15 Complete Bolt Carrier Group
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LBE Unlimited
Overview
The LBE Unlimited AR-15 Complete Bolt Carrier Group is designed specifically for the 5.56 NATO caliber, making it a reliable choice for builders focused on this popular cartridge. Featuring a nitride finish, this bolt carrier group enhances durability and corrosion resistance, ensuring smooth operation during use. This component is commonly found in builds utilizing a mid-length gas system, which balances the rifle's recoil and cycling efficiency.
Specifications
Available Merchants(4)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Lbe Unlimited AR-15 Complete Bolt Carrier Group ranked #77 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #150 of the 549 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (79%, then 300 Blackout 14%), mostly on mid-length gas (70%, then carbine-length 10%), 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, but today none of the 4 retailers we track has it in stock right now. Listed prices start at $112.52 at BattleHawk Armory for when it comes back.
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Frequently Built With
The part most often added in each category by the builds that include this one
Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel w/ 15" ATLAS R-ONE M-LOK Handguard - FDE
Breek Arms Warhammer MOD2 AR-15 Ambidextrous Charging Handle - FDE
Aero Precision M4E1 Stripped AR-15 Lower Receiver - FDE Cerakote
Rise Armament Ra-140 Rave Super Sporting Trigger Drop-In Curved
Magpul AFG-2 Angled Fore Grip - Black
SIG Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201
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 builds →Builds in the community that include the Lbe Unlimited Ar-15 Complete Bolt Carrier Group
| Build | Parts | Total |
|---|---|---|
 | 26 | $2880.25 |
 | 22 | $1309.64 |
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