AR 15 Lower Parts Kits
AR 15 Lower Parts Kits | AR 15 LPK's
Dive deep into our exclusive and premium AR 15 Lower Parts Kits assortment. It is explicitly designed for discerning firearm aficionados who prioritize precision customization or those seeking necessary enhancements to their weapon's core components. Each AR15 LPK in our collection is meticulously crafted to guarantee a fit and a perfect union with your AR15. Beyond mere compatibility, these kits promise unmatched reliability, ensuring that every interaction with your firearm feels seamless. Furthermore, whether you're aiming for a complete overhaul or upgrading a few critical components, our selection offers the assurance and quality your AR15 truly deserves.
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Out of stock
CMMG AR 15 HD Extended Pivot and Takedown Pin Kit
CMMG
$19.95CMMG AR15 HD Extended Pivot and Takedown Pin Kit Unlike standard mil-spec AR-15 takedown pins, these enhanced pins from CMMG are machined with a divot and an increased overall length, providing a surface that allows for fast, easy disassembly without...$19.95 -
AR 15 Hammer Spring
Black Rifle Depot
$1.95AR 15 Hammer Spring The OEM Black Rifle Depot replacement hammer spring fits the oem kits BRD sells. It replaces any damaged, broken or lost parts during your build. Grab an extra one for your bag or shop today. Remember that Black Rifle Depot is...$1.95 -
On Sale
ODIN Works AR 15 Lower Parts Kit
Odin Works
MSRP: $59.00Now: $49.95Was: $56.05ODIN Works AR 15 Lower Parts Kit Are you looking for a reliable and high-quality AR 15 Lower Parts Kit? Look no further than the ODIN Works complete kit. This kit has 31 expertly machined pieces with no MIM parts, ensuring maximum durability and...MSRP: $59.00Now: $49.95Was: $56.05 -
On Sale
Strike Industries AR15 Enhanced Lower Parts Kit without Grip
Strike Industries
MSRP: $77.95Now: $62.95Was: $77.95Strike Industries AR 15 Enhanced Lower Parts Kit without Grip The Enhanced Lower parts kit offers a convenient upgrade package for the AR15 for those looking for a complete Strike Industries solution for new builds, or to update their plain jane...MSRP: $77.95Now: $62.95Was: $77.95 -
AR 15 Safety Selector
Black Rifle Depot
$7.95AR 15 Safety Selector The OEM AR 15 Safety Selector is a Mil-Spec selector for those who want reliability without frills or bling. You might not think that having a spare AR safety selector in your bag or bech arsenal is important, but the peace of mind...$7.95 -
BATTLEARMS Enhanced Magazine Release Kit
Battle Arms Development
MSRP: $19.00$17.95BATTLEARMS Enhanced Magazine Release Kit The BATTLEARMS Enhanced Magazine Release (EMR) is precision CNC Machined for billet 7075-T6 Aluminum in an anodized BLACK finish. The BAD-EMR features a unique, fully solid "V" shaped button face with...MSRP: $19.00$17.95 -
AR 15 Receiver Pivot Pin
Black Rifle Depot
$3.95AR 15 Receiver Pivot Pin The OEM AR 15 Receiver Pivot Pin from Black Rifle Depot is a steel constructed, Mil-Spec receiver pin that has been parkerized for durability and longevity. Remember that Black Rifle Depot is your online shop...$3.95 -
Out of stock
AR 15 Lower Parts Kit With DI Grip
Black Rifle Depot
$59.95AR 15 Lower Parts Kit With DI Grip Black Rifle Depot's OEM AR 15 Lower Parts Kit is assembled with top tier quality parts. These AR 15 Lower Parts Kits are sourced and used by some of the top manufactures in the AR 15 industry. These are 30...$59.95 -
Out of stock
Strike Industries AR Extended Pivot Takedown Pins (Black)
Strike Industries
MSRP: $15.95$14.95Strike Industries AR Extended Pivot Takedown Pins (Black) Strike industries extended takedown pins and pivot pins are ideal for shooters looking for a custom look and that run multiple upper receivers off of a single lower. Made out of...MSRP: $15.95$14.95 -
AR 15 Disconnector Spring
Black Rifle Depot
$1.75AR 15 Disconnector Spring The OEM AR 15 Disconnector Spring from Black Rifle Depot is a Mil-Spec replacement part for all OEM lower parts kits installed in your weapon. Be sure to have an extra spring or two in your range day bag or building workbench...$1.75 -
Out of stock
AR 15 Lower Parts Kit with Magpul MOE Grip - FDE
Magpul Industries
$69.95AR 15 Lower Parts Kit with Magpul MOE Grip - FDE Looking for the best AR 15 Lower Parts kit, Black Rifle Depot's OEM AR 15 Lower Parts Kit is assembled with top tier quality American made parts . With a crisp 6.5LB pull with very...$69.95 -
On Sale
A2 Pistol Grip Kit for AR 15
Black Rifle Depot
Now: $4.95Was: $5.95A2 Pistol Grip Kit for AR 15 Upgrade your AR 15 rifle or pistol with the A2 Pistol Grip Kit, complete with a mil-spec washer and a hardened allen head bolt. Made in the USA and designed to meet or exceed military specifications, this A2 pistol grip is...Now: $4.95Was: $5.95 -
Armaspec Gun Builders Stainless AR 15 Lower Parts Kit
Armaspec
MSRP: $79.99$71.99Armaspec Gun Builders Stainless AR 15 Lower Parts Kit Armaspec Stainless Steel Gun Builders Lower Parts Kit less Trigger Group & Grip for .223/5.56 . If you are looking for a high end gun builder's kit, than this one is for you. It...MSRP: $79.99$71.99 -
Rise Armament AR15 Lower Parts Kit
Rise Armament
$44.99Rise Armament AR15 Lower Parts Kit The RISE Armament 20-piece AR 15 Lower Parts Kit has all the pieces you need to assemble a lower receiver with quality parts. The Lower Parts Kit features all of the working components of a lower receiver, minus...$44.99 -
Out of stock
Armaspec AR 15 Lower Parts Kit Superlight (Less FCG+Grip)-(RED)
Armaspec
MSRP: $84.99$79.95Armaspec AR 15 Lower Parts Kit SL (Less FCG+Grip)-(RED) The Red Armaspec Super light Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder's kit, than...MSRP: $84.99$79.95 -
.308 Lower Parts Kit
Black Rifle Depot
MSRP: $75.95$59.95AR 10/.308 DPMS Lower Parts Kit Our AR 10/.308 lower parts kit helps you to build a custom .308 AR. It includes all the small parts needed to complete your lower. Just add your favorite stock kit and complete upper. This lower parts kit includes...MSRP: $75.95$59.95 -
AR 15 Trigger Spring
Black Rifle Depot
$1.95AR 15 Trigger Spring This OEM trigger spring from Black Rifle Depot is a must have in your bag or bench. Springs are notorious for getting lost or damaged during assembly. Be sure to have an OEM replacement spring on hand when you need it. Remember...$1.95 -
CMMG AR 15 Enhanced Field Repair Kit
CMMG
$38.95CMMG AR 15 Enhanced Field Repair Kit The CMMG Enhanced Field Repair Kit includes parts that all meet or exceed Mil-Spec. Kit Includes: Firing pin Firing pin retaining pin Trigger and hammer pins Extractor spring Extractor pin Extractor...$38.95 -
CMMG AR 15 Lower Pins and Springs
CMMG
$14.95CMMG AR 15 Lower Pins and Springs The CMMG AR-15 Lower Pins and Springs Kit is a meticulously designed, all-inclusive package that serves as a must-have backup for every AR-15 enthusiast. Whether you're faced with a spring that has gone astray or...$14.95 -
AR 15 Hammer
Black Rifle Depot
MSRP: $12.95$11.95AR 15 Hammer These OEM AR 15 Hammers are Mil-Spec and an easy replacement part for those who already operate with an OEM lower parts kits. These Hammers from Black Rifle Depot are a great thing to keep in your bag or to have on your workbench...MSRP: $12.95$11.95 -
Out of stock
AR 15 Lower Parts Kit With Nickel Teflon FCG
Black Rifle Depot
$79.00AR 15 Lower Parts Kit With Nickel Teflon FCG Black Rifle Depot's AR 15 Lower Parts Kit with Nickel Teflon trigger and hammer has a crisp five and a half pound pull and is assembled with top tier quality parts. These AR 15 Lower Parts Kits...$79.00 -
Out of stock
BATTLEARMS 3-Piece Enhanced Lower Parts Kit
Battle Arms Development
MSRP: $35.00$34.95BATTLEARMS 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...MSRP: $35.00$34.95 -
Out of stock
BATTLEARMS AR15/AR10 Ambi Safety Selector
Battle Arms Development
MSRP: $45.00$44.95BATTLEARMS AR15/AR10 Ambi Safety Selector BATTLEARMS Development - Ambidextrous Safety Selector (BAD-ASS) for the AR15 Style Rifles and the ArmaLite, Inc.'s AR10® (Semi Auto). As of 2019 All Kits come with Standard and Short lever option...MSRP: $45.00$44.95 -
UTG AR 15 Oversized Bolt Catch - Steel (Matte Black)
Leapers/UTG
MSRP: $16.97$14.95UTG AR 15 Oversized Bolt Catch - Steel (Matte Black) The UTG® AR15 Oversized Bolt Catch is the perfect accessory part to add to your AR-15/M4 rifles because of the serrated oversized bolt release and extended catch for faster and easier reach and...MSRP: $16.97$14.95 -
Out of stock
AR 15 Lower Parts Kit With 2-Stage Nickel Boron Trigger
Black Rifle Depot
$119.95AR 15 Lower Parts Kit With 2-Stage Nickel Boron Trigger Black Rifle Depot's AR 15 Lower Parts Kit with the Aero Precision 2-Stage nickel boron trigger is assembled with top tier quality parts. The 2-stage trigger features a durable nickel boron...$119.95 -
Out of stock
Dirty Bird Enhanced 2-Stage Lower Parts Kit
Black Rifle Depot
MSRP: $124.95$112.95Dirty Bird Enhanced 2-Stage Lower Parts Kit Dirty Bird Industries' Enhanced 2-Stage Lower Parts Kit consists of the highest quality, precision machined components. This LPK includes pins, springs and controls plus an...MSRP: $124.95$112.95 -
Out of stock
KE Arms AR 15 Enhanced Lower Parts Kit
KE Arms
$89.95KE Arms AR 15 Enhanced Lower Parts Kit The KE Arms AR 15 Lower Parts Kit includes all parts needed to assemble your lower receiver into a functional piece for your AR 15 build. This is a premium lower parts kit complete with black oxide springs and...$89.95 -
Out of stock
Armaspec AR 15 Lower Parts Kit (Less FCG+Grip)-(BLK)
Armaspec
MSRP: $79.99$74.95Armaspec AR 15 Lower Parts Kit (Less FCG+Grip)-(BLK) The Black Armaspec Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder's kit, than this one is for...MSRP: $79.99$74.95 -
Armaspec AR 15 Lower Parts Kit Superlight (Less FCG+Grip)-(BLK)
Armaspec
MSRP: $84.99$76.95Armaspec AR 15 Lower Parts Kit SL (Less FCG+Grip)-(BLK) The Black Armaspec Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder's kit, than this one is...MSRP: $84.99$76.95 -
Strike Industries AR-15 Lower Receiver Springs - Gunsmith / Pro Kit
Strike Industries
MSRP: $101.95$91.95The Strike Industries AR-15 lower Receiver spring replacement kit includes 9 important spring that are commonly replaced or easily lost when building stripped AR-15 lower receivers. The 9-Piece kit includes spring for the bolt catch,...MSRP: $101.95$91.95 -
CMMG AR15 Premium Lower Parts Kit w/Ambidextrous Selector .223/5.56
CMMG
MSRP: $74.95$73.95CMMG AR15 Lower Parts Kit .223/5.56 CMMG AR 15 lower parts kits are known throughout the gun industry for exceeding standards for a mil spec lower parts kit. CMMG AR 15 lower parts kits are perfect for the custom build and all parts come in...MSRP: $74.95$73.95 -
Out of stock
CMMG MK3 308 HD Extended Pivot and Takedown Pin Kit
CMMG
$24.95CMMG MK3 308 HD Extended Pivot and Takedown Pin Kit These improved pins are slightly longer to make take down much faster and easier. The ends have a divot to allow the use of a bullet tip without the fear of slipping. Used on the Mk3 platform that is...$24.95 -
BATTLEARMS Enhanced Modular Magazine Release - Large (Red)
Battle Arms Development
MSRP: $23.95$22.95BATTLEARMS Enhanced Modular Magazine Release - Large (Red) The BATTLEARMS Enhanced Modular Magazine Release (EMMR) is precision CNC Machined for billet 7075-T6 Aluminum. The BAD-EMMR features a unique, patent-pending three sided dovetail finger pad...MSRP: $23.95$22.95 -
BATTLEARMS Titanium Enhanced Pivot & Takedown Pin Set
Battle Arms Development
MSRP: $38.95$37.95BATTLEARMS Titanium Enhanced Pivot & Takedown Pin Set The BATTLEARMS Development Enhanced Pin Set (BAD-EPS-Ti) for the AR15 / M16 / M4 style rifles is a great way to upgrade your AR. The set contains the Enhanced Takedown Pin - Titanium...MSRP: $38.95$37.95 -
CMMG AR15 Lower Parts Kit .223/5.56
CMMG
MSRP: $69.95$68.95CMMG AR15 Lower Parts Kit .223/5.56 CMMG AR 15 lower parts kits are known throughout the gun industry for exceeding standards for a mil spec lower parts kit. CMMG AR15 lower parts kits are perfect for the custom build and all parts come in color...MSRP: $69.95$68.95 -
Strike Industries AR 15 Lower Receiver Builders Pin Kit
Strike Industries
MSRP: $208.95$204.95Strike Industries AR 15 Lower Receiver Builders Pin Kit The Strike Industries pin kit is a valuable addition to your spare/replacement AR 15 parts inventory. This kit is comprised of several important lower pins and detents. The kit contains...MSRP: $208.95$204.95 -
Out of stock
Kaw Valley Precision AR 15 Reduced Power Trigger Spring Kit
MSRP: $9.95$8.95Kaw Valley Precision AR 15 Reduced Power Trigger Spring Kit Mil-spec AR-15 triggers typically have an 8 to 9 pound trigger pull with factory springs. Utilizing the KVP Reduced Power Spring Kit should achieve a trigger pull reduction of 2 to 4 pounds. A...MSRP: $9.95$8.95 -
KNS Precision Non-Rotating Trigger/Hammer Pins
$29.00KNS Precision Non-Rotating Trigger/Hammer Pins These are the STRONGEST pins that can be produced and were designed to withstand the high impact of full and semi-auto 9mm, .223, and 7.62mm suppressed weapons. The pins are stainless steel. Black side...$29.00 -
Luth-AR Takedown Pin Detent w/Spring (10 pack)
Luth-AR
$19.95Luth-AR Takedown Pin Detent w/Spring (10 pack) The Luth-AR Takedown Pin Detent w/Spring 10-pack is an essential addition for any AR-15 enthusiast who wants to stay prepared. With ten high-quality detents and ten detent springs included, you'll have...$19.95 -
Out of stock
AERO Precision Enhanced AR 15 Lower Parts Kit
Aero Precision
MSRP: $130.00$114.99AERO Precision Enhanced AR 15 Lower Parts Kit The AERO Precision AR 15 lower parts kit helps you to build a custom AR15 from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface. Our upgraded...MSRP: $130.00$114.99 -
BATTLEARMS Enhanced Modular Magazine Release - Large (Black)
Battle Arms Development
MSRP: $23.95$22.95BATTLEARMS Enhanced Modular Magazine Release for the AR 15/AR 10 The BATTLEARMS Enhanced Modular Magazine Release (EMMR) is precision CNC Machined for billet 7075-T6 Aluminum. The BAD-EMMR features a unique, patent-pending three sided dovetail...MSRP: $23.95$22.95 -
Out of stock
Strike Industries AR 15 Lower Receiver Pin Kit
Strike Industries
MSRP: $16.95$15.95Strike Industries AR 15 Lower Receiver Pin Kit The Strike Industries AR-15 Lower Receiver Pin Kit comes with all the pins and detents required for an AR 15 lower receiver. Grab one of these kits to be sure you have some extras on hand or replace old...MSRP: $16.95$15.95 -
Out of stock
Enhanced Mil-Spec Trigger Spring
JE Machine Tech
$3.95Enhanced Mil-Spec Trigger Spring Upgrade your M4A1 or civilian AR-15 with the Enhanced Mil-Spec Trigger Spring, meticulously designed to meet MIL-C-71186 specifications for trigger pull weight, ensuring a consistent 5.5 to 8.5-pound range. Crafted with...$3.95 -
KNS Precision Non-Rotating Trigger/Hammer Pins Gen 2 Mod 2
$29.00KNS Precision Non-Rotating Trigger/Hammer Pins Gen 2 Mod 2 Designed to endure the rigors of both full and semi-auto 9mm, .223, and 7.62mm suppressed weapons, the KNS Precision Non-Rotating Trigger/Hammer Pins Gen 2 Mod 2 sets the standard in durability...$29.00 -
Out of stock
Armaspec AR 15 Lower Parts Kit (Less FCG+Grip)(BLK)
Armaspec
MSRP: $74.99$69.95Armaspec AR 15 Lower Parts Kit (Less FCG+Grip)-(BLK) The Black Armaspec Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder's kit, than this one is for...MSRP: $74.99$69.95 -
Out of stock
Armaspec AR 15 Lower Parts Kit SL (Less FCG+Grip)-(BLUE)
Armaspec
MSRP: $84.99$78.95Armaspec AR 15 Lower Parts Kit SL (Less FCG+Grip)-(BLUE) The Blue Armaspec Super light Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder's kit,...MSRP: $84.99$78.95 -
Out of stock
CMMG AR 15 Lower Parts Kit Without Fire Control Group
CMMG
$39.95CMMG AR 15 Lower Parts Kit Without Fire Control Group This Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Trigger Guard, Fire Control Group, or pistol...$39.95 -
Out of stock
Luth-AR AR10/.308 Lower Parts Kit
Luth-AR
MSRP: $78.99$77.95Luth-AR AR10/.308 Lower Parts Kit The Luth-AR AR10/.308 Lower Parts Kit contains the internal parts needed to finish your AR10/.308 lower receiver. All Luth-AR parts meet or exceed standard industry specifications. Features: AR10/.308 Lower...MSRP: $78.99$77.95