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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MIL-SPEC CARBINE BUFFER TUBE - TACTICAL GRAPE
$30.00MIL-SPEC CARBINE BUFFER TUBE - TACTICAL GRAPE Made in the USA Compatible with M4 Type Butt Stocks 6 Position Machined from 7075-T6 Aluminum Weight: 3.6oz Tactical Grape Cerakote Finish$30.00 -
Out of stock
SKELETONIZED ELITE TRIGGER GUARD - BLUE TITANIUM
$25.99PREMIUM SKELETONIZED ELITE TRIGGER GUARD - BLUE TITANIUM 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 Extended Pivot/Takedown Pins - Gold Coating
$15.95Strike Industries Extended Pivot/Takedown Pins - Gold Coating 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...$15.95 -
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 -
TIMBER CREEK ENFORCER AR PISTOL GRIP - TUNGSTEN
$99.99TIMBER CREEK ENFORCER AR PISTOL GRIP - TUNGSTEN Skeletonized Lightweight pistol grip Cerakote finish Drop in replacement mounts to all standard lower receivers Weighing in at just over 4oz$99.99 -
CMC AR-15 Match Curved Trigger - 3.5LB
$189.99CMC AR-15 CURVED MATCH TRIGGER FEATURES Single Stage Match Trigger Multiple trigger pull weights Ultra-crisp trigger with no feel of creep prior to hammer release Trigger has glass-smooth break with no feel of grittiness Minimal lock time is...$189.99 -
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 into the left hand side of the...$19.99 -
On Sale
Tactical Dynamics Skeleton Stock - OD Green
Sale: $56.00MSRP: $109.00Tactical Dynamics Skeleton Stock Finished in Magpul Olive Drab Green Cerakote Made in the USA Compatible with Milspec Carbine Buffer Tube Machined from 6061-T6 Aluminum Specs 6 3/4" Long 5 1/4" Contact Area 1 1/4" Wide 9.65ozSale: $56.00MSRP: $109.00 -
On Sale
VITAL TRIGGER GUARD - OD GREEN
Sale: $14.39MSRP: $15.99Vital Trigger Guard - OD Green With it's slim design, it offers coverage where it is needed serving its purpose: but yet not getting in the way when inquiring your target. Material: Plastic Weight: 1.54oz Includes: Pin & Allen Set...Sale: $14.39MSRP: $15.99 -
On Sale
Ghost Grip - Ridgeway Blue
Sale: $8.99MSRP: $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...Sale: $8.99MSRP: $19.99 -
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 -
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 Bolt Catch Spring Detent Spring Bolt Catch Plunger Bolt Catch Magazine...$29.99 -
STRIKE INDUSTRIES AMBI MAGAZINE RELEASE - FDE
$39.95Strike 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...$39.95 -
TIMBER CREEK AR MAGAZINE RELEASE BUTTON - TUNGSTEN
$7.99AR MAG RELEASE BUTTON - MAGAZINE CATCH BUTTON - TUNGSTEN Tungsten Gray Cerakote finish Compatible with all Milspec lowers Lightweight aluminum Made in the USA$7.99 -
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 -
On Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Blue Titanium
Sale: $69.00MSRP: $170.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Blue Titanium Machined from 7075-T6 Aluminum Forging Finished in Blue Titanium Cerakote Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $69.00MSRP: $170.00 -
On Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Tungsten Gray
Sale: $69.00MSRP: $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 well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $69.00MSRP: $170.00 -
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 -
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 -
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