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.
-
Battle Arms Development EMMR Large Enhanced Modular Magazine Release - Black
$23.95Battle Arms Development EMMR Large Enhanced Modular Magazine Release - Black BAD-EMMR-L (Enhanced Modular Magazine Release - Large Finger Pad) for the AR15/AR10. Precision CNC Machined for billet 7075-T6 Aluminum, the BAD-EMMR features,...$23.95 -
Battle Arms Development Enhanced Magazine Catch - Black
$9.00Battle Arms Development Enhanced Magazine Catch - Black SKU: BAD-EMC-IC Type: Magazine Release Model: Enhanced Manufacturer: Battle Arms Development Manufacturer Part...$9.00 -
Bravo Company AR-15 PNT Trigger Assembly - Nickel
$70.00Bravo Company AR-15 PNT Trigger Assembly - Nickel PNT (Polished Nickel Teflon) parts feature micro polished contact surfaces low-friction Clean break and zero grittiness$70.00 -
BRAVO COMPANY GUNFIGHTER SOPMOD 0 ADJUSTABLE STOCK - BLACK
$64.00BRAVO COMPANY BCMGUNFIGHTER MOD 0 STOCK - BLACK The strongest light-weight polymer stock available for your mil-spec receiver extension More pronounced cheekweld-SOPMOD type (widebody)$64.00 -
Out of stock
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 -
Out of stockOn Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings 3 Pack - Raw
Sale: $145.00MSRP: $390.00Grid Defense AR-15 80% Lower Receiver 3 Pack - Raw Includes 3 Raw No Fire/Safe 80% Lower Receivers Machined from 7075 Forged Aluminum Made in house in the USA Flared and Broached Magwell Raw Aluminum Finish Does not have Fire/Safe Makings Can be...Sale: $145.00MSRP: $390.00 -
Grid Defense Pistol Stabilizing Fin - Pink Champagne
$49.99Grid Defense Pistol Stabilizing Fin - Pink Champagne -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included) -Finished in Pink Champagne Cerakote$49.99 -
LUTH-AR MBA-2 Skullaton Fixed Stock
$49.95LUTH-AR MBA-2 Skullaton Fixed Stock Comes with A2 Buttstock screw to connect to A2 standard buffer tube Fits AR-15 & AR-10 Rifle Length A2 Buffer Tube Luth-AR's MBA-2 Fixed Rifle Stock is designed to mount to an AR-15 or AR-10 Rifle Length A2...$49.95 -
Out of stock
Magpul MOE AR Grip - Pink
$19.95Magpul MOE Grip - Pink AR15/M4 Pistol Grip Flat Dark Earth Reinforced Polymer Construction Beavertail Backstrap Anti Slip Texture 25 Degree Angle Grip Weighs 2.8oz$19.95 -
Out of stock
Mil-Spec Lower Parts Kit Nickel Boron
$79.00Mil-Spec Lower Parts Kit Nickel Boron Includes: Nickel Boron Trigger Group A2 Grip Buffer Retainer Pin Buffer Retainer Spring Trigger Guard Safety Selector Bolt Catch Spring Detent Spring Bolt...$79.00 -
Noveske STS 60 Degree Safety Selector
$37.95Noveske STS 60 Degree Safety Selector Nitride Finish 60 Degree Throw Machined Stainless Construction Tuned for Standard Actuation Force from Safe & Smooth Return from Fire$37.95 -
RADIAN WEAPONS AR15 AMBIDEXTROUS TALON SAFETY SELECTOR 2-LEVER KIT - RED
$59.95AMBI TALON SAFETY SELECTOR 2-LEVER KIT - RED The Talon™ ambidextrous safety selector is a modular design that can be installed as a standard 90° or as a 45° short throw by simply rotating the shaft 180° inside the lower receiver...$59.95 -
Rise Armament Rave Trigger Flat Bow - Red
$149.99Rise Armament Rave Trigger Flat Bow - Red Smooth, crisp break and a short Quik-Klik™ reset you can feel for improved accuracy Comfortable curved trigger blade that sits farther back for enhanced control - also available with a straight, flat...$149.99 -
Rise Armament Super Sporting Trigger with Anti-Walk Pins - Don't Tread On Me Edition
$139.00Rise Armament Super Sporting Trigger with Anti-Walk Pins - Don't Tread On Me Edition Clean break with a short reset Enhances accuracy by minimizing gun disturbance and allows faster initial and follow up shots when compared to a standard trigger...$139.00 -
Sylvan Arms Folding Stock Adapter Gen 4 - Right Hand
$199.99Sylvan Arms Folding Stock Adapter Gen 4 - Right Hand Compatible with most AR15 Standard 1-3/16" x 16 thread Lightweight and Corrosion-Resistant Right folding$199.99 -
TIMBER CREEK AR MAGAZINE RELEASE BUTTON - BLACK
$7.99AR MAGAZINE RELEASE BUTTON - BLACK Billet 6061-T6 aluminum Compatible with all Milspec lowers Manufactured by Timber Creek Outdoors Made in the USA Black Anodized Finish$7.99 -
Out of stock
UTG Model 4 Combat Ops S1 Stock Kit - Black
$72.97UTG Model 4 Combat Ops S1 Stock Kit - Black lack finish 6-position adjustable/collapsible Includes: extension tube" buffer" buffer spring" tear-drop ring & castle nut AR-15/M4 style stock$72.97 -
AR Platform Anti-Walk Pins - Stainless Steel
$11.99AR Platform Anti-Walk Pins - Stainless Steel CNC Machined for Precision Material: Stainless Steel Rod & Screws Standard .156 Diameter Pin Package includes: 2 Allen Keys, 2 pins and 4 Screws Weight 0.1 oz$11.99 -
AR-15 Pistol Buffer Tube Assembly - Tungsten Gray
$35.00PISTOL BUFFER TUBE ASSEMBLY - Tungsten Gray Made in the USA 1.25" Outer Diameter Machined from 7075-T6 Aluminum End Plate Castle Nut Carbine Buffer Spring Carbine Buffer Finished in Tungsten Gray Cerakote$35.00 -
ATI Outdoors Carbine Length Buffer Kit
$63.99ATI Outdoors Carbine Length Buffer Kit Fits most AR15 and AR Variants AR-15 Military-Spec Buffer Tube Virtually indestructible$63.99