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 stockOn Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Black
Sale: $55.00MSRP: $150.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Black Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize – Black Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $55.00MSRP: $150.00 -
On Sale
TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - BLACK
Sale: $16.99MSRP: $19.99AR EXTENDED MAGAZINE RELEASE - BLACK Made in the USA Aircraft grade billet aluminum Manufactured by Timber Creek Outdoors Available in a variety of colorsSale: $16.99MSRP: $19.99 -
Out of stockOn Sale
DPMS AR-10 Takedown Pin Set - Black
Sale: $4.85MSRP: $9.95DPMS AR-10 Takedown Pin Set - Black Made of high-quality steel Black oxide finish for corrosion resistance Easy to install Compatible with DPMS pattern AR-10/308 rifles Reliable and durable Easy to install Compatible with DPMS pattern AR-10/308...Sale: $4.85MSRP: $9.95 -
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 – Black Flared and broached magazine well Rear upper lug...Sale: $240.00MSRP: $700.00 -
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 a standard trigger Flat trigger blade for enhanced...$129.99 -
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 -
Strike Industries Extended Bolt Catch - Black
$16.95Strike Industries Extended Bolt Catch - Black Wide surface area "ping pong paddle" for faster operation Solid Investment Cast8620 construction Widened Bolt Catch Lower Lever Compatible with AR-15 Style Lower$16.95 -
On Sale
Grid Defense Lightweight Billet Aluminum Stock
Sale: $60.00MSRP: $100.00Lightweight Billet Aluminum Stock Weight: 11.2 ounces Featureless design for compliance with state laws Precision-machined from 6061-T6 billet aluminum Featureless design for compliance with state laws Compatible with Mil-Spec buffer tubes Thread...Sale: $60.00MSRP: $100.00 -
ATI Outdoors AR-15 Classic Pistol Grip - Black
$14.99ATI Outdoors AR-15 Classic Pistol Grip - Black Fits AR-15/AR-10 Fits the Ruger 22 Charger Pistol with AR-15 Style Grip DuPont(R) Extreme Temperature Glass Reinforced Polymer Scratch & weatherproof$14.99 -
Magpul Enhanced AR Magazine Release - Black
$19.95Magpul Enhanced AR Magazine Release - Black Machined from milspec anodized aluminum Provides larger contact surface for positive activation Compatible with most 5.56 and 7.62 pattern receivers$19.95 -
Strike Industries MOD1 Stock - Black
$54.95Strike Industries MOD1 Stock - Black Slide on replacement for factory collapsible butt stock Enhanced cheek weld Designed for use with and without rubber buttpad Fits AR-15$54.95 -
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 -
On Sale
Mission First Tactical Battlelink Utility Stock - Black
Sale: $58.49MSRP: $64.99Mission First Tactical Battlelink Utility Stock - Black Black finish Slide-on replacement for collapsible butt stock MilSpec Buffer Tube Angled non-slip rubberized buttpad Fits AR rifles Fits 6 Position TubesSale: $58.49MSRP: $64.99 -
Odin Works Enhanced AR15 Lower Parts Kit
$59.00Odin Works Enhanced AR15 Lower Parts Kit 31 piece set to complete a lower Major Parts are Nitride Coated Winter trigger guard$59.00 -
Out of stockOn Sale
Grid Defense AR-15 80% Lower Receiver With Fire/Safe Engravings 10 Pack - Black
Sale: $474.99MSRP: $1,400.00Grid Defense AR-15 80% Lower Receiver With Fire/Safe Engravings 10 Pack - Black Includes 10 80% Lower Receivers Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize – Black Flared and broached magazine well Rear upper lug...Sale: $474.99MSRP: $1,400.00 -
Out of stock
TIMBER CREEK ENFORCER AR PISTOL GRIP - BLACK
$99.99ENFORCER AR PISTOL GRIP - BLACK Weighs 4oz. Skeletonized grip Cerakote finish Manufactured by Timber Creek Outdoors Inc.$99.99 -
Bravo Company Gunfighter's Grip Mod3 - Black
$20.00Bravo Company Gunfighter's Grip MOD3 - Black Fits AR rifles Reduced angle for improved ergonomics Hinged trap door offering storage inside the grip Up to 1/4" wider than Mod 0 and Mod 1$20.00 -
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 -
Rise Armament Advanced Performance Trigger - Black
$259.99Rise Armament Advanced Performance Trigger Single-stage AR trigger Lightning fast Quik-Klik reset you can feel and hear for rapid follow-up shots Lightened trigger pull with icicle-crisp break to improve accuracy Combines straight trigger...$259.99 -
Rise Armament RAVE Super Sporting Trigger - Flat Bow
$149.99Rise Armament RAVE Super Sporting Trigger - Flat Bow Precise Manufacturing Long Term Reliability Durable Construction 3.5 lb pull weight Single Stage Trigger Includes Anti-Walk Pins$149.99