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San Tan Tactical STT-15 PILLAR Billet Receiver Combo

San Tan Tactical · Lower Receiver

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San Tan Tactical STT-15 PILLAR Billet Receiver Combo

Best price

$450.00at MidwayUSA

In stock checked Nov 13, 2026

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Specifications

Manufacturer
San Tan Tactical
Color
Coyote Tan

Where to buy

StorePriceAvailabilityBuyAdd to build
MidwayUSA Best price $450.00checked Nov 13, 2026 In stock Buy at MidwayUSA
GrabAGun $449.99Salechecked Nov 12, 2026 Check store Buy at GrabAGun
AR15Discounts 5% off $492.24checked Nov 13, 2026 Check store Buy at AR15Discounts
Dirty Bird $567.99checked Nov 12, 2026 Check store Buy at Dirty Bird
Kentucky Gun Co $389.99checked Nov 13, 2026 Out of stock Buy at Kentucky Gun Co

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $450.00 at MidwayUSA. Dashed line = out of stock. Tracking since Nov 12, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$492.24$492.24$492.24
Dirty Bird$567.99$567.99$567.99
GrabAGun$449.99$449.99$449.99
Kentucky Gun Co$389.99$389.99$389.99
MidwayUSA$450.00$450.00$450.00

Since Nov 12, 2026.

About this part

The San Tan Tactical STT-15 PILLAR Billet Receiver Combo is a lower receiver from San Tan Tactical. It's sold by 5 stores (1 in stock), from $389.99 to $567.99. The lowest in-stock price in the last 30 days was $450.00 at MidwayUSA.

From the manufacturer

The San Tan Tactical STT-15 Pillar Billet Receiver Set was designed from the ground up to be truly ambidextrous without making any compromises. Machined out of a solid block of 7075-T6 aluminum on state-of-the-art CNC machinery. This allows for a greater degree of precision for extremely tight tolerances and additional features like lightening cuts to reduce weight and an enlarged magazine well and trigger guard. Whether you are right or left handed or the situation requires you to shoot with your off-hand, a rifle built on this receiver set won't hold you back. Machined right into the lower receiver are bolt and magazine release buttons on each side giving you better control over your rifle without needing to add aftermarket parts. The STT-15 billet AR-15 receiver set from San Tan Tactical offers uncompromising performance, so you can build the rifle you need. Features: Machined from 7075-T6 aluminum Mil-Spec Type III hardcoat anodized black Fully ambidextrous design Both mag and bolt releases come installed Compatible with Mil-Spec parts kits .154" trigger pin holes Lightened receiver cuts Enlarged trigger guard and beveled magazine well Receiver tension screw Upper receiver comes assembled QD sling swivel slots The lower receiver comes with both magazine and bolt releases assembled but a lower parts kit is required to finish it. Compatible with all Mil-Spec components like a trigger with .154" pin diameters and ambidextrous safety selectors. However, the upper receiver comes fully assembled with a dust cover and forward assist. Just thrown in your favorite ambidextrous charging handle and you have a rifle that doesn't discriminate against lefties. Additional features of this AR-15 billet receiver set is built in quick detach sling swivel slots on both sides and a receiver tension screw that can be accessed through the bottom near the pistol grip. San Tan Tactical believes in carrying on the tradition of American designed and made firearms and that is exactly what they are doing. Their receivers and lower parts are some of the most innovative in the industry and they are proud bring you a product not only made from American sourced materials, but American machinery as well. They take the time to listen to customers critiques and are constantly evolving their products to satisfy your needs.

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