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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Ghost Grip - Tungsten Gray
$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 into the left hand side of...$19.99 -
Ghost Grip - Zombie Green
$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 into the left hand side of...$19.99 -
Grid Defense Pistol Grip Screw and Washer Replacement
Sale: $2.95MSRP: $9.99Grid Defense Pistol Grip Screw and Washer ReplacementSale: $2.95MSRP: $9.99 -
Grid Defense Pistol Stabilizing Fin - Blue Titanium
$49.99Grid Defense Pistol Stabilizing Fin - Blue Titanium -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included) -Finished in Blue Titanium Cerakote$49.99 -
HEXMAG AR15 ADVANCED TACTICAL GRIP - FDE
$29.99HEXMAG AR15 ADVANCED TACTICAL GRIP - FDE Fits AR-15 and AR-10 platforms 17 for pistols/SBRs" 25 degree for standard angle or 33 degree for long range Made from fiber-reinforced polymer HexMag's AR-15 Advanced Tactical Pistol Grip features a...$29.99 -
Magpul MOE K-2 AR Pistol Grip
$20.95Magpul MOE K-2 AR Pistol Grip Weight: 2.9oz Thickness: 1.2" Height: 4.1" Grip Angle: 17 Degrees Compatible With: AR15, AR10, M16, M4, M110, SR25$20.95 -
Magpul MOE SL Carbine Stock - Black
$59.95Magpul MOE SL Carbine Stock - Black Made in U.S.A. FEATURES Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, LMT, Ruger, S&W, SIG, and others (please see the note below) Sloping...$59.95 -
MIL-SPEC PISTOL BUFFER TUBE - FDE
$25.00MIL-SPEC PISTOL BUFFER TUBE - FDE Made From: Forged 7075 aluminum FDE Cerakote Finish **Buffer, Castle Nut, End Plate Not Included**$25.00 -
PHASE5 WINTER TRIGGER GUARD - BLACK
$25.00BLACK PHASE 5 WINTER TRIGGER GUARD Newly Revised Useful Feature When Wearing Gloves Guard Shape Adds Visual Appeal Includes Allen Wrench, Roll Pin, Anti-Rattle Screw$25.00 -
Rise Armament Rave Single Stage Trigger with Lower Parts Kit - Black
$180.00Rise Armament Rave Single Stage Trigger with Lower Parts Kit - Black No take-up —Quik-Klik reset you can feel Elementary installation — no set screws to tighten Single stage, 3.5-lb. pull weight Includes anti-walk pins for worry-free...$180.00 -
SKELETONIZED ELITE TRIGGER GUARD - OLIVE DRAB
$25.99Premium Skeletonized Elite Trigger Guard - Olive Drab This Skeletonized trigger guard is the premium option from the Vital trigger guard that comes standard with all completed lowers. With it's slim design, it offers coverage where it is needed...$25.99 -
STRIKE INDUSTRIES AMBI MAGAZINE RELEASE - RED
$43.95Strike Industries AMBI Magazine Release Made in USA Low Profile and Ergonomically Designed Includes Enhanced Magazine Release Button and Spring for Complete Drop-in Upgrade Ambidextrous for The Left and Right Handed Shooters Manufactured by Strike...$43.95 -
STRIKE INDUSTRIES FANG BILLET TRIGGER GUARD - FDE
$21.95STRIKE INDUSTRIES FANG BILLET TRIGGER GUARD - FDE Contents:- 1x Aluminum Trigger Guard- 4x M3 Hex Screw- 1x Warning card Features:- Aircraft grade aluminum construction- Magazine reload assist- Cleaner, faster reloads- Lightweight (.4 oz with...$21.95 -
TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - PURPLE ANODIZED
$19.99AR EXTENDED MAGAZINE RELEASE - PURPLE Compatible with all variances of the AR platform Manufactured by Timber Creek Outdoors Aircraft grade billet aluminum Purple Anodized Finish$19.99 -
Armaspec AR-15 Sound Mitigation Buffer Gen 3 - Black
$59.99Armaspec Sound Mitigation Buffer Gen 3 - Black Single-stage captured drop-in replacement for your standard buffer and spring Reduce felt recoil Keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth and quiet...$59.99 -
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 -
Battle Arms Development Enhanced Pivot & Takedown Pin Set - Titanium
$38.95Battle Arms Development Enhanced Pivot & Takedown Pin Set - Titanium AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with mil-spec .250in diameter front pivot and rear takedown pin holes. Patent Pending Pivot Pin &...$38.95 -
Ergo SureGrip AR Grip Kit A/T - Desert Tan
$25.99Ergo Suregrip AR Grip Kit A/T DE Desert Tan Color AR15/AR10 Pistol Grip Rear Upper Extension Supports the Web of Your Hand Finger Grooves Aggressive Texture for Improved Control Includes the Patented Grapper for Increased Comfort Over-Molded...$25.99 -
Extended Takedown and Pivot Pins
$5.99Extended Takedown and Pivot Pins Mil-Spec Extended and grooved grip 8620 Alloy steel construction Black Melonite finish Fits: AR-15$5.99 -
Ghost Grip - Pink Champagne
$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 into the left hand side of the...$19.99