Doublestar Corp AR-15 Lower Parts Kit 5.56 Black
Doublestar Corp.
$77.69
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Doublestar Corp.
Doublestar Corp AR-15 Lower Parts Kit 5.56 Black
The DoubleStar Lower Parts Kit for AR-15 in 5.56 delivers a complete, mil-spec foundation for your build, combining precision-machined components with high-quality American-made parts for a reliable, smooth-shooting lower assembly.
- Mil-spec heat-treated 8620 steel fire control group for lasting durability
- Smooth, crisp trigger pull with minimal creep, drag, or overtravel
- All touch points finished for consistent feel and enhanced reliability
- Includes bonus takedown detent and spring for extra peace of mind
- Coiled steel spring pins throughout for superior retention and longevity
- Fully American-made components ensure quality and build confidence
Who This Is For
This kit is ideal for AR-15 builders — from first-time builders assembling their own rifle on a stripped lower to experienced gunsmiths stocking reliable replacement parts. Whether you're completing a 5.56 precision rifle, a home defense carbine, or a range-ready build, the DoubleStar LPK gives you a solid, dependable starting point without sacrificing quality for cost.
Specifications
| Brand | DoubleStar Corp. |
|---|---|
| Model | DBST LPK 556 BLK |
| Caliber / Platform | 5.56 NATO / AR-15 |
| Material | Mil-Spec Heat-Treated 8620 Steel (FCG) |
| Spring Pins | Coiled Steel |
| Finish | Black |
| Origin | USA |
| Includes | Full LPK + Extra Takedown Detent & Spring |
| Compatibility | Mil-Spec AR-15 Stripped Lower Receivers |
Frequently Asked Questions
What does this lower parts kit include?
The DoubleStar AR-15 Lower Parts Kit includes all the components needed to complete a standard mil-spec AR-15 stripped lower receiver — trigger, hammer, disconnector, springs, pins, safety selector, magazine catch, bolt catch, pistol grip hardware, buffer retainer, and trigger guard components. As a bonus, this kit also includes an extra takedown detent and spring, which is a small but valuable addition for builders who want a backup on hand.
Will this lower parts kit fit any AR-15 stripped lower receiver?
Yes. This kit is designed to mil-spec dimensions and is compatible with the vast majority of standard AR-15 stripped lower receivers from major manufacturers. As long as your lower receiver conforms to standard mil-spec tolerances — which most do — this kit will fit and function correctly. Always verify compatibility with your specific lower receiver before beginning your build.
How does the DoubleStar trigger feel compared to standard mil-spec triggers?
DoubleStar specifically finishes all trigger contact points to produce a cleaner, crisper break than many generic mil-spec fire control groups. Users typically notice reduced creep and minimal drag, resulting in a more predictable and consistent pull. While it is not a drop-in aftermarket trigger, it performs noticeably better than many standard mil-spec alternatives right out of the box — making it an excellent choice for both duty-style and range builds.
