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Radian
Overview
The Radian Weapons AX556 Ambidextrous Billet AR-15 Lower Receiver is a lower receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Radian Weapons AX556 Ambidextrous Billet AR-15 Lower Receiver
Available Merchants(7)
Prices checked
Price Alert
October 2026 on GunPartPicker
Radian Weapons AX556 Ambidextrous Billet AR-15 Lower Receiver ranked #106 of the 588 lower receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #117 of the 1,222 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (61%, then 300 Blackout 21%), split between mid-length (37%) and carbine-length (26%) gas systems, 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 6 of the 7 retailers we track have it in stock. Prices barely moved in October 2026, holding around $514.95, with no real sale all month. Buying today, the lowest price is $514.95 at Brownells, 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 Lower Receiver Trends →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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Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
ODIN Works Zulu Adjustable Stock KIT w/ Padded Pistol Buffer Tube & End Plate, Flat Dark Earth
Radian Weapons M16 Enhanced Bolt Carrier Group Nitride
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 Radian Weapons Ax556 Ambidextrous Billet Ar-15 Lower Receiver
| Build | Parts | Total |
|---|---|---|
 | 15 | $1688.41 |
 | 20 | $2432.45 |
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