KAK Industry Basic Build Kit AR-15 LPK Yellow Bag - AR15-LP-KT-02 - 811163035811
Product Description
Assembling a custom AR-15 lower receiver with preferred aftermarket triggers, custom pistol grips, and specialized trigger guards often leaves builders paying extra for unwanted standard factory components. Standard complete lower parts kits force shooters to purchase stock fire control groups and A2 plastic grips that get immediately discarded. The KAK Industry Basic Build Kit AR-15 LPK (AR15-LP-KT-02)—packaged in KAK's recognizable "Yellow Bag"—solves component redundancy by delivering a streamlined, core lower receiver hardware package that omits the trigger group, pistol grip, and trigger guard.
Precision-manufactured to strict Mil-Spec engineering tolerances, this basic builder kit contains every essential pin, spring, plunger, and catch required to fully assemble a stripped lower receiver shell. Included components feature a Mil-Spec safety selector assembly, bolt catch assembly, magazine catch setup, buffer retainer system, and takedown/pivot pin sets. Each steel component is treated with a dark, corrosion-resistant protective coating designed to withstand heavy recoil cycles and high-wear operational environments.
Ideal for custom rifle builds incorporating match-grade drop-in triggers, ambidextrous controls, or ergonomic rubberized grips, the KAK Industry AR15-LP-KT-02 provides genuine Mil-Spec fitment and flawless staging reliability without unnecessary part overlap.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment & Platform Compatibility Matrix: Fits standard Mil-Spec AR-15 forged and billet lower receivers (0.154" trigger/hammer pin dimensions, 0.250" takedown/pivot pin holes). Note: Builder hardware kit format; does NOT include fire control group (trigger, hammer, disconnector), pistol grip, or trigger guard.
Assembly Sequence:
- Safety check the workspace and inspect stripped lower receiver pin channels.
- Install the magazine catch, mag release button, and spring; assemble the bolt catch using a roll pin punch with masking tape to protect the receiver finish.
- Install the front pivot pin, spring, and detent using a pivot pin installation tool to prevent detent spring loss.
- Install your choice of aftermarket fire control group (using included Mil-Spec 0.154" pins if required) and safety selector assembly.
- Install the rear takedown pin, buffer retainer assembly, your preferred pistol grip (with selector detent spring), and buffer receiver extension assembly according to standard armorer torque specs.
Key Features
- Streamlined Builder Format: Omits fire control group, grip, and trigger guard to save money when installing custom aftermarket parts.
- Complete Lower Hardware Package: Includes essential pins, springs, detents, latches, plungers, and roll pins for lower assembly.
- Mil-Spec Precision Manufacturing: Engineered to standard dimensions for drop-in fitment with forged and billet AR-15 lower receivers.
- Corrosion-Resistant Protective Finishes: Treated internal hardware and high-tensile springs withstand moisture, chemical solvents, and wear.
- Iconic Yellow Bag Packaging: Easily identifiable KAK builder hardware packaging containing color-coded/organized small parts.
Product Specifications
- Brand: KAK Industry
- Model: AR-15 LPK Basic Build Kit (Yellow Bag)
- MPN: AR15-LP-KT-02
- UPC: 811163035811
- Platform Compatibility: Standard Mil-Spec AR-15 Lower Receivers
- Included Components: Takedown/Pivot Pins & Springs, Bolt Catch Assembly, Mag Catch Assembly, Buffer Retainer, Safety Selector
- Excluded Components: Trigger Group, Pistol Grip, Trigger Guard
- Pin Hole Size: 0.154" Hammer/Trigger Pins & 0.250" Takedown/Pivot Pins
- Finish / Color: Matte Black / Mil-Spec Parkerized
