LBE Unlimited AR-15 Pistol Buffer Tube, Black - PBT-Black
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LBE Unlimited
Overview
The LBE Unlimited AR-15 Pistol Buffer Tube is a mil-spec tube designed specifically for pistol builds, ensuring compatibility with a range of AR-15 components. Made from 6061-T6 aluminum and finished with a hardcoat anodized layer, this black buffer tube provides durability and a reliable foundation for your firearm. This buffer tube commonly appears in builds chambered in 5.56 NATO, making it a solid choice for those looking to create a compact and effective setup.
Specifications
Available Merchants(8)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have been adding the LBE Unlimited AR-15 Pistol Buffer Tube, Black - PBT-Black to their builds on GunPartPicker since May 2026. All time, it ranks #22 of the 179 buffer tube kits builders have added. Builds with this buffer tube assembly are mostly chambered in 5.56 NATO (67%, then .308 Win 17%), nearly all on mid-length gas, and mostly AR-15 (94%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 6 of the 8 retailers we track have it in stock. It dipped to $18.33 at BattleHawk Armory for a stretch in September 2026, well under its usual $20.88 to $22.14, so sales do come around. Buying today, the lowest price is $18.89 at BattleHawk Armory.
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
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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.
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