The Luth-AR AR-15 Gunsmith Kit is a curated collection of essential small parts and components built for anyone who maintains, repairs, or builds AR-platform rifles. Whether you're a professional gunsmith restocking your bench, a gun shop arming your counter, or a home builder who needs reliable OEM-spec replacements, this kit consolidates the springs, pins, detents, and fasteners you'll actually reach for—eliminating the frustration of hunting down individual parts mid-project.
Built by folks who understand that AR work isn't glamorous but demands precision, Luth-AR packed this kit with the high-turnover components that fail, get lost, or wear out: buffer retainers and springs, bolt catch assemblies, trigger and hammer springs, disconnectors, selector detents, extractor parts, firing pin hardware, takedown pins, and gas tube fasteners. You also get a Delrin punch and gas rings (two 30-packs), the kind of small-tools and consumables that pay for themselves the first time you avoid a supply run during a repair job.
The kit's layout—quantities ranging from single-unit tools to 20-count consumables—reflects real shop experience, not a generic grab-bag. It's the difference between having what you need when you need it and losing an hour to sourcing. Ideal for the serious amateur builder, the working gunsmith, or any outfit that handles AR maintenance regularly.
What's Included
- 10× Buffer Retainer (LR-01)
- 5× .223/5.56 Crush Washer (BL-06-CW)
- 10× Buffer Retainer Spring (LR-02)
- 10× Ejection Hinge Pin Snap Ring (UR-02)
- 5× Bolt Catch Spring (LR-09)
- 5× Ejection Port Cover Pin (UR-03)
- 5× Bolt Catch Buffer (LR-10)
- 5× Ejection Port Cover Spring (UR-05)
- 5× Bolt Catch Roll Pin (LR-12)
- 5× Roll Pin for Charging Handle (UR-16)
- 20× Detent Spring (LR-14)
- 5× Charging Handle Latch Spring (UR-17)
- 20× Takedown Detent (LR-15)
- 5× Charging Handle Latch (UR-18)
- 5× Front Pivot Pin (LR-18)
- 2× Gas Rings (30-pack each, BT-01-30P)
- 5× AR-15 Disconnector (LR-19)
- 5× Extractor Pin (BT-03)
- 5× Trigger Spring (LR-22)
- 5× Ejector Roll Pin (BT-04)
- 3× Pistol Grip Screw (LR-23)
- 5× Ejector (BT-06)
- 3× Pistol Grip Screw Washer (LR-24)
- 5× AR-15 Extractor (BT-07)
- 10× Extractor Spring Assembly with Insert (BT-08)
- 10× Extractor O-Ring, AR-15 (BT-08-OR)
- 10× Hammer/Trigger Pin (LR-28)
- 10× Bolt Carrier Gas Key Screw (BT-10)
- 5× Rear Takedown Pin (LR-30)
- 5× Firing Pin, AR (BT-14)
- 5× Disconnector Spring (LR-31)
- 5× Firing Pin Retaining Pin (BT-16)
- 5× Hammer Spring (LR-32)
- 3× Cam Pin (BT-17)
- 10× Gas Tube Roll Pin (BL-03)
- 1× Delrin Punch (TL-PU)
Frequently Asked Questions
Is this AR-15 gunsmith kit suitable for home builders?
Yes. This kit is designed for home AR enthusiasts as well as professional gunsmiths and gun shops. The mix of parts and quantities supports both single-build projects and ongoing maintenance without excessive surplus.
What AR platform does this kit work with?
The kit is built for AR-15 and AR-15-style rifles. Components are spec'd for standard AR-15 platforms; compatibility with other modern pony rifles should be verified against your specific build or repair.
Does this kit include tools?
Yes. The kit includes one Delrin punch, a soft-faced tool useful for driving pins and detents without marring parts during assembly or disassembly.
What if I only need a couple of specific parts?
This is a curated kit sold as a complete set. If you're after individual replacement components, contact us to discuss options.
