The Strike Industries Enhanced AR-10 Lower Parts Kit (Builder’s Kit) streamlines AR-10/LR308/SR-25 builds with SI’s upgraded controls and all essential small parts—while letting you choose your own pistol grip and trigger group. Expect better ergonomics, smarter details, and a cleaner assembly than a basic LPK.
- Builder’s Kit: complete lower essentials; excludes pistol grip and trigger group by design
- SI Enhanced controls: improved shapes, textures, and access for real-world use
- 60/90-degree HEX selector system included (dual levers + end cap)
- Extended pivot and takedown pins for easier field stripping
- Includes spare mil-spec trigger springs to refresh an existing trigger
- Cost-effective upgrade over standard AR-10 LPKs
- Package Contents — Enhanced Parts (11 pcs): AR-10 Enhanced Bolt Catch; Magazine Catch; Magazine Catch Button; Extended Pivot Pin; Extended Takedown Pin; HEX Selector Switch (x2); HEX Selector End Cap; 60/90° Selector Shaft (with screws)
- Package Contents — Springs (9 pcs): Bolt Catch Spring; Magazine Catch Spring; Pivot Pin Detent Spring (x1); Takedown Pin Detent Spring (x1); Selector Spring; Buffer Retainer Spring; Hammer Spring; Trigger Spring; Disconnector Spring
- Package Contents — Pins/Detents/Others (8 pcs): Bolt Catch Plunger; Bolt Catch Roll Pin; Pivot Pin Detent; Takedown Pin Detent; Selector Detent; Buffer Retainer; Hammer Pin; Trigger Pin
- Compatibility: AR-10, DPMS/LR308, SR-25 lower receivers; Aero Precision M5 (gen variations may affect rear takedown pin fit)
- Not Compatible: ArmaLite AR-10; some billet lowers (no universal AR-10 mil-spec); AR-15 (bolt catch, bolt catch roll pin, pivot pin, takedown pin are AR-10 specific)
- Notes: AR-10 platforms lack a unified spec; minor component play can occur while still functioning as intended
