One Horse AR-15 Complete Lower Parts Kit
$50.91
Complete your AR-15 build with the One Horse AR-15 Complete Lower Parts Kit, featuring a precision-machined, phosphate-coated single-stage trigger that ensures a reliable 5.5-7 lb pull. This comprehensive Mil-Spec kit includes every necessary pin, spring, and component for a fully functional lower, designed for drop-in compatibility with any Mil-Spec AR-15 lower receiver. Perfect for serious builders looking for quality and performance.
145 in stock
Finish your AR15 lower with this comprehensive Mil-Spec Lower Parts Kit. Includes every pin spring detent and component needed for a fully functional lower—minus buffer tube assembly and stock. The phosphate-coated single-stage trigger delivers crisp reliable 5.5–7 lb pull with proven mil-spec geometry. All parts are precision-machined for drop-in compatibility with any Mil-Spec AR15 lower receiver. Single-stage Mil-Spec trigger trigger spring hammer hammer spring disconnector disconnector spring trigger pin hammer pin selector selector detent selector detent spring bolt catch bolt catch plunger bolt catch spring bolt catch roll pin magazine catch magazine catch button magazine catch spring takedown pin pivot pin takedown/pivot detents (2) takedown/pivot detent springs (2) buffer retainer buffer retainer spring trigger guard trigger guard roll pin bolt release roll pin A2-style pistol grip pistol grip screw pistol grip lock washer.
| Weight | 0.541 lbs |
|---|---|
| Dimensions | 6.000 × 5.500 × 2.000 in |
| Manufacturer | One Horse |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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