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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Elite Trigger Guard
$24.99Premium ELITE Trigger Guard This 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 serving its purpose. Being made from...$24.99 -
Magpul CTR Stock Mil-spec - Black
$64.95Magpul CTR Carbine Stock - Black FEATURES Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others (please see the note below) Supplemental friction lock...$64.95 -
VITAL TRIGGER GUARD - ZOMBIE GREEN
$15.99Vital Trigger Guard - Zombie 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...$15.99 -
STRIKE INDUSTRIES ULTRA LIGHT PIVOT / TAKEDOWN PINS - BLUE
$16.95STRIKE INDUSTRIES ULTRA LIGHT PIVOT AND TAKEDOWN PINS - BLUE Billet 7075 aluminum Blue Finish Extended grasping surface Extended pivot pin / 1.31" length Extended takedown pin /1.08" length For AR-15 lowers Ultra light and ultra strong...$16.95 -
TIMBER CREEK AMBIDEXTROUS SAFETY SELECTOR - BURNT BRONZE
$39.99AMBIDEXTROUS SAFETY SELECTOR - BURNT BRONZE For the left or right hand shooters Timber Creek Ambi Safety Drop in replacement safety selector Manufactured by Timber Creek Outdoors Allows for multiple configurations$39.99 -
Magpul B.A.D. Lever - Battery Assist Device - AR15/M4
$32.95Magpul B.A.D. Lever - Battery Assist Device - AR15/M4 Improves the Speed and Efficiency of the AR15/M16 Bolt Catch Machined from Billet 6061-T6 Aluminum Functional for Left and Right Handed Shooters All Mounting Hardware Included Compatible with...$32.95 -
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - TUNGSTEN
$23.99TIMBER CREEK OVERSIZED TRIGGER GUARD - TUNGSTEN AR TRIGGER GUARD Replacement Trigger Guard Tungsten Gray Cerakote Lightweight Manufactured by Timber Creek Outdoors, Inc.$23.99 -
MAGPUL MOE STOCK MILSPEC - Flat Dark Earth
$44.95Magpul Moe Stock MilSpec - Flat Dark Earth Made in the USA Weighs 8.0oz Length - 6.9" LOP Adjustment Range - 3.3 inch Sling Mounts (Rear/Bottom 1.25" Sling Loops|Toe-Lanyard Hole for Custom Para Cord Rigs) Compatible with Magpul ASAP/ASAP QD and...$44.95 -
Magpul PMAG Gen M2 MOE 30rd .223/5.56 Magazine - Black
$12.95Magpul PMAG Gen M2 MOE 30rd .223/5.56 Magazine - Black 30-round reliability with no stoppages Flared floorplate aids magazine handling and disassembly and is slim enough for use with many double and triple pouches The anti-tilt, self-lubricating...$12.95 -
TACTICAL DYNAMICS SKELETON GRIP - ZOMBIE GREEN
$79.00TACTICAL DYNAMICS SKELETON GRIP - ZOMBIE GREEN Finished In Zombie Green Machined from 7075-T6 Aluminum Durable and Lightweight Compatible with AR15/AR10 Platforms Unique Design Made in the USA$79.00 -
Tactical Dynamics Skeleton Stock - Burnt Bronze
$109.00Tactical Dynamics Skeletonized Stock Finished in Burnt Bronze Cerakote Made in the USA Fits: Mil Spec Buffer Tube Made From: Aluminum 6061-T6 Specs 6 3/4" Long 5 1/4" Contact Area 1 1/4" Wide 9.65oz$109.00 -
TIMBER CREEK AR TAKEDOWN PIN SET - TUNGSTEN
$19.99AR TAKEDOWN PIN SET - TUNGSTEN Cerakote finish Compatible with milspec M4/AR15 Lowers Made in the USA AR Pivot Pin Set Machined from billet aluminum These CNC machined pins are drop in replacements for Mil-Spec lowers...$19.99 -
TIMBER CREEK AMBIDEXTROUS SAFETY SELECTOR - BLACK
$39.00AMBIDEXTROUS SAFETY SELECTOR - BLACK Drop in replacement for any milspec lower For both left and right hand shooters Made in the USA Manufactured by Timber Creek Outdoors$39.00 -
TRIGGER PIN / HAMMER PIN - AR15
$3.99TRIGGER PIN/HAMMER PIN - AR15 Compatible with AR15/M4 Lower Receivers American Made$3.99 -
Magpul MOE Trigger Guard - Black
$8.95Magpul MOE Trigger Guard Constructed from Advanced Polymer Compatible with the AR15/M4 Platform All Mounting Hardware Included Made in the USA$8.95 -
VITAL TRIGGER GUARD - TACTICAL GRAPE
$15.99Vital AR Trigger Guard - TACTICAL GRAPE 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...$15.99 -
GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH BLACK MAGPUL MOE + GRIP
$79.99GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE GRIP This complete lower parts kit includes all the components needed to build out your lower receiver minus the buffer tube assembly. Includes: Magpul MOE+ Grip Magpul MOE Trigger...$79.99 -
Tactical Dynamics Skeleton Stock - FDE
$109.00Tactical Dynamics Skeleton Stock Finished in Magpul Flat Dark Earth 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 9.65oz$109.00 -
Ghost Grip - Blue Titanium
$19.99Ghost Grip - Blue Titanium 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 -
Magpul MOE Plus AR Grip - FDE
$24.95Magpul MOE Plus AR Grip FDE AR15/M4 Pistol Grip Beavertail Backstrap Anti Slip Texture Reinforced Polymer Construction 25 Degree Angle Grip Weighs 3.4oz Made in the USA$24.95