Lower Parts
Looking to get new parts for your AR's lower receiver. This is the place to look, with hundreds of parts from stocks and grips to a new mag release button. Shop with Grid Defense to customize and build the best lower receiver you can. Make your firearm look, feel, and perform the best with our selection of OE and aftermarket parts.
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Out of stock
TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - OD GREEN
$19.99AR EXTENDED MAGAZINE RELEASE - OLIVE DRAB GREEN Aircraft grade billet aluminum OD Green Cerakote Finish Made in the USA Manufactured by Timber Creek Outdoors Inc. OD Green Mag...$19.99 -
Out of stock
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - BURNT BRONZE
$23.99AR OVERSIZED TRIGGER GUARD - BURNT BRONZE Burnt Bronze Cerakote Lightweight 0.4oz Oversized Drop in Trigger Guard Manufactured by Timber Creek Outdoors$23.99 -
Out of stock
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - OD GREEN
$23.99AR OVERSIZED TRIGGER GUARD - OLIVE DRAB GREEN Weight 0.4oz OD Green Extra room around trigger Replacement trigger guard manufactured by Timber Creek Outdoors, Inc$23.99 -
Adaptive Tactical EX Performance Stock - Black
$59.99Adaptive Tactical EX Performance Stock - Black Ideal upgrade for your AR15 or AR10 M4-style stock with adjustable length-of-pull Compatible with Mil-Spec sized extension tubes Sleek design$59.99 -
ATI Outdoors AR-15 Buffer Spring
$6.99ATI Outdoors AR-15 Buffer Spring Manufactured in the USA Virtually Indestructible Fits Most AR-15 and AR Variants$6.99 -
Out of stockOn Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Tungsten Gray
Sale: $60.00MSRP: $170.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Tungsten Gray Machined from 7075-T6 Aluminum Forging Finished in Tungsten Gray Cerakote Flared and broached magazine...Sale: $60.00MSRP: $170.00 -
Grid Defense No FCG Mil-Spec Lower Parts Kit
$29.99Grid Defense No FCG Mil-Spec Lower Parts Kit A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector&nb$29.99 -
Out of stock
STRIKE INDUSTRIES MAGAZINE CATCH - RED
$20.95STRIKE INDUSTRIES MAGAZINE CATCH - RED Enhanced Magazine Catch: Steel 6061-T6 Aluminum Release Button Solid Billet Aluminum Construction Unique Anodized Colors Red Finish$20.95 -
Out of stock
TIMBER CREEK AR TAKEDOWN PIN SET - BURNT BRONZE
$19.99AR TAKEDOWN PIN SET - BURNT BRONZE Cerakote Finish Made in the USA Machined from billet aluminum Compatible with Milspec M4/AR15 Lower Receivers$19.99 -
Out of stock
TIMBER CREEK AR TAKEDOWN PIN SET - OD GREEN
$19.99AR TAKEDOWN PIN SET - OLIVE DRAB GREEN Machined from billet aluminum Cerakote finish Compatible with milspec M4/AR15 Lowers Made in the USA$19.99 -
Out of stock
Ghost Grip - Smith& Wesson Red
$19.99The Ghost Grip is designed for Made In the USA Made From: reinforced Plastic composite Slim Lightweight Design Incorporates finger groves to insure a tight and comfortable hold Ghost "G"...$19.99 -
Out of stockOn Sale
Grid Defense AR-15 80% Lower Receiver With Fire/Safe Engravings 5 Pack - Black
Sale: $240.00MSRP: $700.00Grid Defense AR-15 80% Lower Receiver With Fire/Safe Engravings 5 Pack - Black Includes 5 80% Lower Receivers Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize –...Sale: $240.00MSRP: $700.00 -
Out of stock
Rise Armament Super Sporting Trigger - Live Free or Die
$129.99Rise Armament Super Sporting Trigger - Live Free or Die Clean break with a short reset Enhanced accuracy by minimizing gun disturbance Allows faster initial and follow up shots when compared to...$129.99 -
Out of stockOn Sale
Strike Industries Enhanced Lower Parts Kit
Sale: $74.65MSRP: $82.95Strike Industries Enhanced Lower Parts Kit Enhanced Bolt Catch Strike Magazine Catch Strike Magazine Catch Button Enhanced Pivot Pin Enhanced Takedown PinSale: $74.65MSRP: $82.95 -
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...$15.99 -
KNS NON-ROTATING TRIGGER/HAMMER PIN .154 - G2 MOD2
$33.00KNS NON-ROTATING TRIGGER PINS/ANTI ROTATION HAMMER PIN .154 - G2 MOD2 Item Info Item 32381-2 UPC 851876003097 Brand KNS Precision, Inc Model .154 Diameter Mfg No...$33.00 -
Out of stock
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - BLACK
$23.99AR OVERSIZED TRIGGER GUARD - BLACK Drop in Trigger Guard Variety of Colors Aircraft grade billet aluminum Manufactured by Timber Creek Outdoors Inc. Black Anodized Finish$23.99 -
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - FLAT DARK EARTH
$23.99OVERSIZED AR TRIGGER GUARD - FLAT DARK EARTH Lightweight 0.4oz. Drop in replacement More space large or gloved hand Manufactured BY Timber Creek Outdoors, Inc.$23.99 -
Out of stock
Ghost Grip - Sig Pink
$19.99The Ghost Grip is designed for Made In the USA Made From: reinforced Plastic composite Slim Lightweight Design Incorporates finger groves to insure a tight and comfortable hold Ghost "G" Engraved...$19.99 -
Out of stockOn Sale
Grid Defense AR-10 80% Billet Lower Receiver Without Fire/Safe - Tungsten Gray
Sale: $100.00MSRP: $250.00Grid Defense AR-10 80% Lower Receiver Without Fire/Safe - Tungsten Gray Machined from 6061-T6 Billet Aluminum Made in house in the USA Flared and Broached Magwell Finished in Tungsten Gray...Sale: $100.00MSRP: $250.00