Lower Parts Kits
Welcome to a world of precision and customization with our premium AR-15 Lower Parts Kits. Whether you're a seasoned firearms enthusiast or a newcomer to the AR platform, our comprehensive selection of lower parts kits offers everything you need to build or upgrade your AR-15 lower receiver.
Our AR-15 Lower Parts Kits are engineered to the highest standards, ensuring reliable performance, smooth operation, and enhanced durability. Crafted from top-quality materials and manufactured with precision, each component in our kits is designed to fit seamlessly, providing a solid foundation for your firearm project.
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On Sale
Grid Defense Bolt Catch Plunger/Spring/Roll Pin Replacement
Sale: $4.49MSRP: $9.99Grid Defense Bolt Catch Plunger/Spring/Roll Pin Replacement 1x Bolt Catch Plunger 1x Bolt Catch Plunger Spring 1x AR-15 Bolt Catch Roll PinSale: $4.49MSRP: $9.99 -
On Sale
Aero Precision M5 Lower Parts Kit
Sale: $92.99MSRP: $99.99Aero Precision M5 Lower Parts Kit Magpul MOE Grip in Black M5 (.308) Takedown Pin M5 (.308) Pivot Pin Takedown/Pivot Detent Takedown/Pivot Spring M5 (.308) Bolt Catch Bolt Catch Buffer Bolt Catch Roll Pin Bolt Catch Spring Extended Magazine...Sale: $92.99MSRP: $99.99 -
Out of stock
GHOST FIREARMS MIL-SPEC LOWER PARTS KIT WITH FDE MAGPUL MOE GRIP AND TRIGGER GUARD
$79.99This complete lower parts kit includes all the components needed to build out your lower receiver minus the buffer tube assembly. Includes: Magpul MOE Grip Magpul MOE Trigger Guard Trigger Group Buffer Retainer Pin Buffer Retainer...$79.99 -
Out of stock
Armaspec Superlight AR-15 Lower Parts Kit - FDE
$84.99Armaspec Superlight AR-15 Lower Parts Kit - FDE Includes Armaspec Enhanced Lower Parts Compatible with most AR-15 lowers Made in the U.S.A. Lifetime warranty AR-15 lower receiver 1x Armaspec SFT 45/90 Safety Selector 1x Bolt Catch 1x...$84.99 -
Out of stock
Rise Armament Lower Parts Kit - No Fire Control Group
$44.99Rise Armament Lower Parts Kit - No Fire Control Group Precise Manufacturing Long Term Reliability Durable Construction$44.99 -
On Sale
BATTLEARMS 3 Piece Enhanced Lower Parts Kit
Sale: $31.50MSRP: $35.00BATTLEARMS 3 Piece Enhanced Lower Parts Kit Enhanced Bolt Catch (BAD-EBC-IC), which is a cost-friendly alternative, without sacrificing the quality for your AR build! The AR-15 Cast Enhanced Bolt Catch is 8620 heat treated cast steel with a manganese...Sale: $31.50MSRP: $35.00 -
Out of stock
Mil-Spec Lower Parts Kit Nickel Boron
$79.00Mil-Spec Lower Parts Kit Nickel Boron Includes: Nickel Boron Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt...$79.00 -
Out of stock
Grid Defense 9mm Lower Parts Kit
$12.00Grid Defense 9mm Lower Parts Kit Ejector 2 Ejector Set Screws Magazine Release Button Magazine Release Button Roll Pin Magazine Release Spring IF YOU PURCHASE A GRID DEFENSE 9MM 80% LOWER RECEIVER THIS KIT IS INCLUDED IN THAT PURCHASE. THIS KIT...$12.00 -
Out of stock
Grid Defense Complete Lower Pistol Build Kit - FDE
$109.99Ghost Firearms Complete Lower Pistol Build Kit - FDE FDE Cerakote Trigger Group FDE Cerakote A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent...$109.99 -
Armaspec Superlight AR-15 Lower Parts Kit - Red
$84.99Armaspec Superlight AR-15 Lower Parts Kit - Red Includes Armaspec Enhanced Lower Parts Compatible with most AR-15 lowers Made in the U.S.A. Lifetime warranty AR-15 lower receiver 1x Armaspec SFT 45/90 Safety Selector 1x Bolt Catch 1x...$84.99 -
Ghost Firearms Mil-Spec Lower Parts Kit - 5 Pack
$299.95Ghost Firearms Mil-Spec Lower Parts Kit - 5 Pack Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt...$299.95 -
GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE K FDE GRIP
$99.99GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE K FDE GRIP This complete lower parts kit includes all the components needed to build out your lower receiver minus the buffer tube assembly. Includes: Magpul MOE K FDE Grip Magpul MOE Trigger...$99.99 -
Daniel Defense AR15 Lower Parts Kit
$115.00Daniel Defense AR15 Lower Parts Kit - Black Mil-Spec AR15 Lower Parts Kit Compatible with Multiple Calibers A2 Pistol Grip Magpul Trigger Guard Made in the USA Daniel Defense Lower Parts Kit$115.00 -
Strike Industries AR-15 Lower Parts Kit No Fire Control Group
$60.95Strike Industries AR-15 Lower Parts Kit No Fire Control Group Enhanced Bolt Catch Strike Magazine Catch Enhanced Takedown Pin SI 60-90 Degree 3-in-1 Selector Shaft$60.95 -
Out of stock
Grid Defense Mil-Spec Lower Parts Kit - FDE
$79.99Ghost Firearms Mil-Spec Lower Parts Kit - FDE FDE Cerakote Trigger Group FDE Cerakote A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt...$79.99 -
Seekins Precision Builder's Kit Lower Parts Kit
$149.00Seekins Precision Builder's Kit Lower Parts Kit Seekins Precision Parts No Trigger Included Ar-15 LPK Trigger Guard Mag Release Bolt Catch Ambi Safety Take Down Pins Pins Detents and Springs$149.00