ATI Alpha Maxx Stripped Upper Lower Receiver Set
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American Tactical Imports
Overview
The ATI Alpha Maxx Stripped Upper Lower Receiver Set is a foundational component for your AR-15 build, providing the essential framework for assembly without any pre-installed parts. This stripped set allows builders the flexibility to customize their firearm according to their specific needs and preferences. Commonly, this receiver set is found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, making it a versatile choice for those looking to optimize their AR-15 for performance and reliability.
Specifications
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
ATI Alpha Maxx Stripped Upper Lower Receiver Set ranked #251 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 #265 of the 1,217 lower receivers builders have added.
It was out of stock everywhere we track every time we checked in October 2026, and today the one retailer we track is out of stock. Listed prices start at $55.57 at BattleHawk Armory for when it comes back.
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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Rise Armament AR-15 Magazine Release Button - Rise Red
PSA AR-15 Upper 5.56 16" Mid-Length 1/7 Nitride 13.5" M-LOK w/NiBx BCG & CH
Wilson Combat AR-15 Barrel 11.3"5.56 NATO 1:7 Carbine-Length Stainless Steel
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.
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