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.
-
ATI Outdoors TactLite GEN2 AR-15 Mil-Spec Stock - Black
$48.99ATI Outdoors TactLite GEN2 AR-15 Mil-Spec Stock - Black ATI Outdoors Item Number: C.2.10.2212 TactLite GEN2 Adjustable Stock with TracLOCK GEN2 System Eliminates Horizontal & Vertical Movement...$48.99 -
B5 Systems AR-15 Pistol Grip - FDE
$20.00B5 Systems AR-15 Pistol Grip - FDE Aggressive texture for increased retention. Accepts Battery Grip Plug. Made of Milspec material. Available in all standard colors.$20.00 -
B5 Systems Medium Length Collapsible Precision Stock - Black
$230.00B5 Systems Medium Length Collapsible Precision Stock - Black Adjustable cheekweld and buttpad with precision dials. Mounting slots for Accessory Cheekpiece. 12 internal tensioners. Color...$230.00 -
B5 Systems SOPMOD Stock - FDE
$120.00B5 Systems SOPMOD Stock - FDE Ergonomic cheek weld. Color-matched steel hardware. Overmolded steel anti-rotational QD sling mounts. Fixed sling mounts. No slip cushioned butt$120.00 -
Battle Arms Development AR-15 Ambidextrous Safety Selector - Blue
$65.00Battle Arms Development AR-15 Ambidextrous Safety Selector - Blue Ambidextrous Controls Reversible 0- 60 or 0- 90 Option Lightweight, Billet 7075-T6 Aircraft Grade Aluminum Ergonomic Lever...$65.00 -
Battle Arms Development AR-15 Ambidextrous Safety Selector - Purple
$65.00Battle Arms Development AR-15 Ambidextrous Safety Selector - Purple Ambidextrous Controls Reversible 0- 60 or 0- 90 Option Lightweight, Billet 7075-T6 Aircraft Grade Aluminum Ergonomic Lever...$65.00 -
Out of stock
Battle Arms Development AR-15 Ambidextrous Safety Selector - Red
$65.00Battle Arms Development AR-15 Ambidextrous Safety Selector - Red Ambidextrous Controls Reversible 0- 60 or 0- 90 Option Lightweight, Billet 7075-T6 Aircraft Grade Aluminum Ergonomic Lever...$65.00 -
Battle Arms Sabertube QD Lightweight Stock Kit - Black
$199.95Battle Arms Sabertube QD Lightweight Stock Kit - Black Mil-Spec carbine buffer and buffer spring compatible QD sling attachment point Made in the USA$199.95 -
F.A.B. Defense Mag-well Grip and Funnel - FDE
$26.00F.A.B. Defense Mag-well Grip and Funnel - FDE Polymer Finger Grooves for a comfortable grip Fits AR-15$26.00 -
FORTIS SLS FIFTY SAFETY SELECTOR - BLACK
$69.95FORTIS SLS FIFTY SAFETY SELECTOR - BLACK Precise Manufacturing Long Term Reliability Durable Construction$69.95 -
Out of stock
Magpul PMAG 30rd Engraved .223/5.56 Magazine - Black
$30.95Magpul 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...$30.95 -
Magpul PSR GEN3 Precision Adjustable Stock - Black
$259.95Magpul PSR GEN3 Precision Adjustable Stock - Black Machined aluminum LOP and Cheek Piece adjustment knobs Steel adjustment shafts finished with Melonite Bottom M-LOK slots for sling or monopod$259.95 -
Mil-Spec Buffer Tube End Plate
$10.99Ensure a rock-solid, reliable buffer assembly installation on your lower receiver with the Mil-Spec Buffer Tube End Plate. Built to strict military standards, this essential receiver extension...$10.99 -
Mil-Spec Carbine Buffer - 3.0oz
$15.99Ensure smooth cycling, proper bolt speed, and optimal recoil management with the Mil-Spec Carbine Buffer. Designed as a direct drop-in replacement for standard AR-15 carbine buffer systems, this 3.0...$15.99 -
Out of stock
Mission First Tactical Engage AR Pistol Grip V2 - Black
$19.99Mission First Tactical AR Pistol Grip V2 - Black Black finish Version 2 No finger grooves 15 degree angle Tab covers the receiver gaps$19.99 -
Radian Talon Ambidextrous 45/90 Degree Safety Selector - Gray
$69.95Radian Talon Ambidextrous 45/90 Degree Safety Selector - Gray Designed & Manufactured in the USA 2-Lever Combo: Short + Long Levers Machined from Billet aircraft grade aluminum w Milspec Type 3 Hard...$69.95 -
Rise Armament AR-15 Magazine Release Button - Black Anodized
$9.99RISE AR-15 Magazine Release Button Sleek, ergonomic design Anti-slip horizontal grooves Simple installation Precision machined from 6061 alum$9.99 -
Rise Armament AR-15 Magazine Release Button - Graphite
$9.99Rise Armament AR-15 Magazine Release Button - Graphite Sleek, ergonomic design Anti-slip horizontal grooves Simple installation Precision machined from 6061 aluminum$9.99 -
Strike Industries AR-15 Modular Bolt Catch
$34.95Strike Industries AR-15 Modular Bolt Catch Modular design to easily change between different bolt catch deigns 4 different buttons included (Standard, Oversized, Left Extended and Right...$34.95 -
Out of stock
Strike Industries PDW Stock - Black
$274.95Strike Industries PDW Stock - Black Ambidextrous, push button deployment Ergonomic, compound curved stock Lightweight Compatible with standard bolt carriers No non-standard t$274.95