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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Bravo Company Trigger Guard Mod 0 - Black
$8.00Bravo Company Trigger Guard Mod 0 - Black Ergonomically correct shape and contour No sharp edges, Compatible with "duck-billed" grips Made of impact resistant polymer$8.00 -
Daniel Defense AR15 Lower Parts Kit
$115.00Daniel Defense AR15 Lower Parts Kit - Black Mil-Spec AR15 Lower Parts Kit Compatible with Multiple Calibers A2 Pistol Grip Magpul Trigger Guard Made in the USA Daniel Defense Lower Parts Kit$115.00 -
Out of stock
Ergo MSR Compact AR-15 Pistol Grip - FDE
$17.99Ergo MSR Compact AR-15 Pistol Grip - FDE MSR Upgraded Pistol Grip Aggressive Texturing Integral rear upper extension supports the web of the shooters hand Mounting hardware included$17.99 -
Grid Defense Pistol Stabilizing Fin - Tungsten Gray
$49.99Grid Defense Pistol Stabilizing Fin - Tungsten Gray -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included) -Finished in Tungsten Gray Cerakote$49.99 -
Out of stock
HEXMAG AR15 ADVANCED TACTICAL GRIP - BLACK
$29.99HEXMAG AR15 ADVANCED TACTICAL GRIP - BLACK 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 Grip AR15/M4 - FDE
$20.95Magpul MOE-K Grip - Flat Dark Earth 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 -
On Sale
Magpul STR Carbine Stock - Black
Sale: $76.45MSRP: $84.95Magpul STR Carbine Stock Compatible with Milspec Carbine Buffer Tube AR15/M4 Butt Stock Reinforced Polymer Construction Improved Cheek Weld Two Water Resistant Battery Tubes QD Sling Mount 0.30" Thick Butt Pad Made in the USASale: $76.45MSRP: $84.95 -
PHASE5 OVERSIZED MAGAZINE RELEASE RED
$21.99PHASE 5 MAG RELEASE - OVERSIZED MAGAZINE RELEASE Features: Larger contact surface than a Mil-Spec magazine release button Ergonomic pocket on surface of paddle for your finger CNC machined from lightweight 6061-T6...$21.99 -
Out of stock
RADIAN WEAPONS AR15 AMBIDEXTROUS TALON SAFETY SELECTOR 2-LEVER KIT - TUNGSTEN GRAY
$49.95AMBI TALON SAFETY SELECTOR 2-LEVER KIT - TUNGSTEN GRAY 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...$49.95 -
Out of stock
RADIAN WEAPONS RAPTOR AMBI TALON SAFETY SELECTOR 2-LEVER KIT - NP3
$74.95AMBI TALON SAFETY SELECTOR 2-LEVER KIT - NP3 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...$74.95 -
Radian Weapons Talon Ambidextrous Safety Selector - Flat Dark Earth
$64.95Radian Weapons Talon Ambidextrous Safety Selector - Flat Dark Earth Short & Long Lever Billet Aircraft Grade Aluminum Center Shaft Machined from Hardened Steel AR15/AR10 Compatible$64.95 -
STRIKE INDUSTRIES BILLET TRIGGER GUARD - BLACK
$25.95STRIKE INDUSTRIES BILLET TRIGGER GUARD - BLACK Aircraft grade aluminum construction Magazine reload assist Cleaner, faster reloads Functions as safe trigger finger index rest Lightweight Weight 0.5 oz$25.95 -
Out of stock
TACTICAL DYNAMICS SKELETON GRIP - PERIWINKLE
$79.00Tactical Dynamics Skeleton Grip - Periwinkle Machined from 7075-T6 Aluminum Durable and Lightweight Compatible with AR15/AR10 Platforms Unique Design Made in the USA Periwinkle Cerakote Finish$79.00 -
TIMBER CREEK ENFORCER AR PISTOL GRIP - FLAT DARK EARTH
$99.99ENFORCER AR PISTOL GRIP - FLAT DARK EARTH Cerakote FDE Pistol Grip Weighs 4oz. Manufactured by Timber Creek Outdoors, Inc.$99.99 -
Out of stock
$99.99 -
Wilson Combat Single Stage Trigger
$189.95Wilson Combat Single Stage Trigger 5-5.75 Lb pull Fits AR-15 style rifles$189.95 -
Out of stock
2A Armaments Builder Series Slotted Trigger Guard
$14.992A Armaments Builder Series Slotted Trigger Guard Precise Manufacturing Long Term Reliability Durable Construction Black Anodized Finish For AR-15 Rifles Aluminum Construction$14.99 -
Out of stock
Adaptive Tactical EX Lite Stock - Black
$34.99Adaptive Tactical EX Lite Stock - Black Only compatible with Mil-Spec sized extension tubes Covered take down pin makes installation and removal easier and eliminates discomfort M4-style stock with adjustable length-of-pull Easy to reach...$34.99 -
Out of stock
AR Enhanced Ambidextrous Safety Selector - Black
$20.99AR Enhanced Ambidextrous Safety Selector - Black For Left or Right-Handed Shooters Replaces Existing Safety Lever Easy-To-Operate Safety Lever on Both Sides of The Receiver Does Not Interfere with Grip Position or Thumb Placement Fits Semi-Auto ...$20.99 -
Out of stock
AR Enhanced Ambidextrous Safety Selector - Gold
$23.99AR Enhanced Ambidextrous Safety Selector - Gold For Left or Right-Handed Shooters Replaces Existing Safety Lever Easy-To-Operate Safety Lever on Both Sides of The Receiver Does Not Interfere with Grip Position or Thumb Placement Fits Semi-Auto ...$23.99