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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Patriot Ordnance Factory Ambidextrous Safety Selector 50/90 Degree
$62.38Patriot Ordnance Factory Ambidextrous Safety Selector Safety Selector Ambidextrous For Left And Right Handed Shooters 50/90 Degree Manufactured By Patriot Ordinance Factory Made In The USA$62.38 -
On Sale
Rise Armament Advanced Performance Trigger - Black
Sale: $222.21MSRP: $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...Sale: $222.21MSRP: $259.99 -
SAFETY SELECTOR - AR15
$9.99AR15 SAFETY SELECTOR Compatible with AR15/M4 Lower Receivers American Made$9.99 -
Out of stock
SKELETONIZED ELITE TRIGGER GUARD - FLAT DARK EARTH
$25.99PREMIUM SKELETONIZED ELITE TRIGGER GUARD - FDE 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 serving...$25.99 -
Out of stock
Tactical Dynamics Skeleton Stock - Tactical Grape
$109.00Tactical Dynamics Skeleton Stock Finished in Tactical Grape 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 -
On Sale
Tactical Dynamics Skeleton Stock - Tequila Sunrise
Sale: $56.00MSRP: $109.00Tactical Dynamics Skeleton Stock Finished in Tequila Sunrise 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 -
Out of stock
TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - BLUE ANODIZED
$19.99AR EXTENDED MAGAZINE RELEASE - BLUE ANODIZED Mag Release in Blue anodized finish Lightweight Made in the USA Manufactured by Timber Creek Outdoors$19.99 -
TIMBER CREEK AR MAGAZINE RELEASE BUTTON - FLAT DARK EARTH
$7.99AR MAGAZINE RELEASE BUTTON - FLAT DARK EARTH Lightweight billet aluminum Choose from a variety of colors Manufactured by Timber Creek Outdoors Made in the USA Flat Dark Earth Cerakote Finish$7.99 -
Out of stock
Adaptive Tactical Lightweight Tactical Grip - Woodland Camo
$25.99Adaptive Tactical Lightweight Tactical Grip - Woodland Camo AR-15/M-16/M4 Pistol Grip Constructed from High Grade Reinforced Polymer One Piece Construction Non-Conductive Ergonomic Aggressive Design Lightweight and...$25.99 -
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 -
Geissele 2 Stage Trigger - G2S
$170.00Geissele 2 Stage (G2S) Trigger Type: 2 Stage 1st Stage Weight: 2.5lbs. 2nd Stage Weight: 2.0lbs. Total Pull Weight: 4.5lbs. Adjustable: No Recommended Use: Law Enforcement, Home Defense, Hunting Pin Size: Mil-Spec$170.00 -
On Sale
Grid Defense AR-9 80% Lower Receiver Without Fire/Safe Engravings - FDE
Sale: $89.00MSRP: $179.00Grid Defense AR-9 80% Lower Receiver - FDE Finished in Magpul FDE Cerakote Machined from 6061 billet aluminum Compatible with any Glock style small frame pistol calibers Compatible with Glock pattern or style magazines Magazine release button and...Sale: $89.00MSRP: $179.00 -
Grid Defense Complete Lower Pistol Build Kit - FDE
$109.99Ghost Firearms Complete Lower Pistol Build Kit - FDE FDE Cerakote Trigger Group FDE Cerakote A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent...$109.99 -
GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE K FDE GRIP
$99.99GRID DEFENSE MIL-SPEC LOWER PARTS KIT WITH MAGPUL MOE K FDE 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 K FDE Grip Magpul MOE Trigger...$99.99 -
Magpul MOE-K Grip AR15/M4 - Black
$20.95Magpul MOE-K Grip - Black Compact and Thin Minimalist Design Constructed from Reinforced Polymer More Angled Vertical Grip than Standard A2 Grip Aggressive TSP Texture Weighs 2.4oz Made in the USA$20.95 -
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 -
Mission First Tactical Battlelink Extreme Duty Minimalist Stock - Scorched Dark Earth
$69.99Mission First Tactical Battlelink Extreme Duty Minimalist Stock - Scorched Dark Earth Slide-on replacement for collapsible butt stock Angled non-slip rubberized removable buttpad allows faster presentation Multiple Sling Slots with single point...$69.99 -
ODIN Works AR-10 Adjustable Buffer
$49.00ODIN Works AR-10 Adjustable Buffer FEATURES: Comes with 3 different weights Allow multiple possibilities of weight combinations Designed specifically for the .308 AR carbines Set screws design for easy...$49.00 -
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 -
Out of stockOn Sale
SB Tactical SBA5 Adjustable Pistol Brace With Grid Defense Buffer Tube Kit - Black
Sale: $119.95MSRP: $169.95SBA5 with Grid Defense Buffer Kit - Black SB Tactical SBA5 Pistol Stabilizing Brace Complete Grid Defense Buffer Tube Assembly Kit Carbine buffer (3 oz) Carbine buffer spring Carbine stock end plate Carbine stock lock ring-castle nutSale: $119.95MSRP: $169.95