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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Ghost Firearms Mil-Spec Lower Parts Kit
$59.99Ghost Firearms Mil-Spec Lower Parts Kit Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt...$59.99 -
Complete Rifle Parts Kit - AR15
$94.99Complete Rifle Parts Kit Lower Parts Kit Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt...$94.99 -
OOPS KIT - REPLACEMENT PARTS
$9.99AR 15 Oops Kit includes: (1) Hammer spring (1) Trigger spring (2) Hammer/trigger pins (1) Disconnector spring (2) Takedown/pivot pin detents (2) Takedown/pivot pin springs (1) Safety spring (1) Safety detent (1) Magazine release...$9.99 -
On Sale
AR10 Lower Parts Kit
Sale: $59.00MSRP: $79.00Includes: Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt Catch Magazine Catch Spring Bolt Catch...Sale: $59.00MSRP: $79.00 -
Ghost Firearms Complete Lower Pistol Build Kit
$89.99Ghost Firearms Complete Lower Pistol Build Kit Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt...$89.99 -
Out of stock
Mil-Spec Lower Parts Rifle Kit Nickel Boron
$99.00Includes: Lower Parts Kit with NiB Fire Control Group Nickel Boron Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt...$99.00 -
Complete Rifle Parts Kit - AR10
$119.00Complete AR10 Rifle Parts Kit AR10 Lower Parts Kit Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch Plunger...$119.00 -
Out of stock
Grid Defense Lower Pistol Build Kit Nickel Boron
$99.00Ghost Firearms Lower Pistol Build Kit Nickel Boron Nickel Boron Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt Catch...$99.00 -
Out of stock
GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH BLACK MAGPUL MOE + GRIP
$79.99GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE 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+ Grip Magpul MOE Trigger...$79.99 -
Out of stock
Spike's Tactical Standard AR15 Lower Parts Kit
$85.00Spike's Tactical Lower Parts Kit Better than Mil-Spec quality Included Rounded Hammer (Works with ALL Calibers) and Hammer Spring Trigger and Trigger Spring Disconnector and Disconnector Spring Stainless Hammer and Trigger Pin with Black Oxide...$85.00 -
AERO PRECISION AR15 FIELD REPAIR KIT
$14.99AERO PRECISION AR15 FIELD REPAIR KIT AR15 Takedown Pin Detent (2) Takedown Pin Spring (2) Roll Pin, Fwd Assist (2) Bolt Catch Spring (2) Bolt Catch Buffer Bolt Catch Roll Pin (2) Trigger/Hammer Pin Safety Selector Spring Safety Selector...$14.99 -
Spike's Enhanced Lower Parts Kit
$181.00Spike's Enhanced Lower Parts Kit 556 - Black Better than Mil-Spec quality Five Upgrades Over Standard Parts Kit Battle Trigger Group (Nickel Boron Coated)Billet Tool-less Trigger GuardBlack Ergo GripBlack KNS Anti Rotation Gen 2 Mod 2Ambi Safety Also...$181.00 -
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 -
Grid Defense Pistol Lower Parts Kit with Fin
$129.98Grid Defense Pistol Lower Parts Kit with Fin Grid Defense Pistol Stabilizing Fin -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included) PISTOL BUFFER TUBE...$129.98 -
Armaspec Spare Parts Kit
$15.99Armaspec Spare Parts Kit Lower Parts For: AR-15 and 7.62/.308 AR's Constructed From Stainless Steel Includes: 3 Pivot/Takedown Pin Detents 3 Pivot/Takedown Pin Springs 1 Safety Selector Detent And Spring 1 Buffer Retainer...$15.99 -
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 -
BATTLEARMS 3 Piece Enhanced Lower Parts Kit
$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...$35.00 -
Strike Industries Enhanced Lower Parts Kit
$82.95Strike Industries Enhanced Lower Parts Kit Enhanced Bolt Catch Strike Magazine Catch Strike Magazine Catch Button Enhanced Pivot Pin Enhanced Takedown Pin SI Selector Lever SI Selector End Plate SI 60-90 degree 3-in-1 Selector Shaft$82.95 -
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 -
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