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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SB TACTICAL SBM4 PISTOL STABILIZING BRACE - BLACK
$129.99SB TACTICAL SBM4 PISTOL STABILIZING BRACE - BLACK The SBM4 Pistol Stabilizing Brace was designed to provide increased stability and improved accuracy while firing with one hand. The polymer construction firmly contours to your forearm and while the...$129.99 -
Grid Defense Pistol Stabilizing Fin - FDE
$49.99Grid Defense Pistol Stabilizing Fin - FDE -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included)$49.99 -
$9.99
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MIL-SPEC CARBINE BUFFER TUBE - BURNT BRONZE
$30.00MIL-SPEC CARBINE BUFFER TUBE - BURNT BRONZE Made in the USA Compatible with M4 Type Butt Stocks 6 Position Machined from 7075-T6 Aluminum Weight: 3.6oz Burnt Bronze Cerakote Finish$30.00 -
TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - BLACK
Sale: $16.99MSRP: $19.99AR EXTENDED MAGAZINE RELEASE - BLACK Made in the USA Aircraft grade billet aluminum Manufactured by Timber Creek Outdoors Available in a variety of colorsSale: $16.99MSRP: $19.99 -
Tactical Dynamics Skeleton Grip - Raw Aluminum
$69.00Tactical Dynamics Skeleton Grip - Raw Aluminum Raw Aluminum Finish Machined from 7075-T6 Aluminum Durable and Lightweight Compatible with AR15/AR10 Platforms Unique Design Made in the USA$69.00 -
TIMBER CREEK AR TAKEDOWN PIN SET - BLACK
$19.99AR TAKEDOWN PIN SET - BLACK Made in the USA Machined from Billet Aluminum Compatible with Milspec AR15/M4 Lower Receivers Anodized Finish These CNC machined pins are drop in replacements for milspec lowers and allow easier disassembly of your...$19.99 -
Daniel Defense 5.56/.223 32 Round Magazine - Black
$22.00Daniel Defense AR15 .223/5.56 Nato 32 Round Magazine - Black Platform - AR15 Caliber - 5.56/.223 Color - Black Brand - Daniel Defense Capacity - 32 Rounds Durable and Lightweight Carbon Fiber Reinforced Polymer Enhanced Feed Ramp Anti-Tilt...$22.00 -
Ergo SureGrip AR Grip Kit A/T Black
$25.99Ergo Suregrip AR Grip Kit A/T Black Black in 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 -
MAGAZINE CATCH SPRING - AR15
$1.99MAGAZINE CATCH SPRING Compatible with AR15/M4 Lower Receivers American Made$1.99 -
$7.99
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TIMBER CREEK AR EXTENDED MAGAZINE RELEASE - OD GREEN
$19.99AR EXTENDED MAGAZINE RELEASE - OLIVE DRAB GREEN Aircraft grade billet aluminum OD Green Cerakote Finish Made in the USA Manufactured by Timber Creek Outdoors Inc. OD Green Mag Release$19.99 -
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - BURNT BRONZE
$23.99AR OVERSIZED TRIGGER GUARD - BURNT BRONZE Burnt Bronze Cerakote Lightweight 0.4oz Oversized Drop in Trigger Guard Manufactured by Timber Creek Outdoors$23.99 -
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - OD GREEN
$23.99AR OVERSIZED TRIGGER GUARD - OLIVE DRAB GREEN Weight 0.4oz OD Green Extra room around trigger Replacement trigger guard manufactured by Timber Creek Outdoors, Inc$23.99 -
SB TACTICAL SBA4 STABILIZING PISTOL BRACE - BLACK
$169.99SB Tactical SBA4 Stabilizing Pistol Brace - Black Made in the USA 5-Position Adjustable Includes 6 Position 7075 Milspec Carbine Receiver Extension Designed after the SBM4 Integral, Ambidextrous QD Sling Socket AR/M4 Includes Adjustable Nylon...$169.99 -
TIMBER CREEK AR TAKEDOWN PIN SET - BURNT BRONZE
$19.99AR TAKEDOWN PIN SET - BURNT BRONZE Cerakote Finish Made in the USA Machined from billet aluminum Compatible with Milspec M4/AR15 Lower Receivers These CNC machined pins are drop in replacements for Mil-Spec lowers and allow easier...$19.99 -
TIMBER CREEK AR TAKEDOWN PIN SET - OD GREEN
$19.99AR TAKEDOWN PIN SET - OLIVE DRAB GREEN Machined from billet aluminum Cerakote finish Compatible with milspec M4/AR15 Lowers Made in the USA These CNC machined pins are drop in replacements for Mil-Spec lowers and allow easier...$19.99 -
VITAL TRIGGER GUARD - FLAT DARK EARTH
$15.99Vital Trigger Guard - Flat Dark Earth 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 -
MIL-SPEC CARBINE BUFFER TUBE - BLUE TITANIUM
$30.00MIL-SPEC CARBINE BUFFER TUBE - BLUE TITANIUM Made in the USA Compatible with M4 Type Butt Stocks 6 Position Machined from 7075-T6 Aluminum Weight: 3.6oz Blue Titanium Cerakote Finish$30.00 -
Spike's Tactical Standard AR15 Lower Parts Kit
$85.00Spike's Tactical Lower Parts Kit Better than Mil-Spec quality Included Rounded Hammer (Works with ALL Calibers) and Hammer Spring Trigger and Trigger Spring Disconnector and Disconnector Spring Stainless Hammer and Trigger Pin with Black Oxide...$85.00