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.
-
TIMBER CREEK ENFORCER AR PISTOL GRIP - OD GREEN
$99.99TIMBER CREEK ENFORCER AR PISTOL GRIP - OD GREEN Made in USA Cerakote finish CNC machined from aircraft grade billet aluminum Manufactured by Timber Creek Outdoors Inc.$99.99 -
Out of stock
Armaspec AR-15 Sound Mitigation Buffer Gen 3 - Black
$59.99Armaspec Sound Mitigation Buffer Gen 3 - Black Single-stage captured drop-in replacement for your standard buffer and spring Reduce felt recoil Keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth and quiet...$59.99 -
Out of stock
Extended Takedown and Pivot Pins
$5.99Extended Takedown and Pivot Pins Mil-Spec Extended and grooved grip 8620 Alloy steel construction Black Melonite finish Fits: AR-15$5.99 -
On Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Burnt Bronze
Sale: $69.00MSRP: $170.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Burnt Bronze Machined from 7075-T6 Aluminum Forging Finished in Burnt Bronze Cerakote Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $69.00MSRP: $170.00 -
$6.99 -
Out of stock
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 -
Out of stock
Strike Industries Anti-Rotation/Anti-Walk Trigger/Hammer Pins - Black
$17.95Strike Industries AR-15 Antiwalk/Antirotation Trigger/Hammer Pins Black - Black .154” pin diameter Machined from S45C steel Black Nitride finished Polished bearing surface Toolless installation Improved trigger feel$17.95 -
$4.99 -
Elite Tactical Systems .223/5.56 30rd AR Magazine Gen 2 - FDE
$12.75Elite Tactical Systems .223/5.56 30rd AR Magazine Gen 2 - FDE State-of-the-art long fiber polymer provides unmatched toughness and durability Improved feed lip geometry allows better compatibility with more receivers Over insertion tab is larger to...$12.75 -
Out of stockOn Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Black
Sale: $55.00MSRP: $150.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Black Machined from 7075-T6 Aluminum Forging 8625 Type III Hardcoat Anodize – Black Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $55.00MSRP: $150.00 -
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 -
On Sale
Ghost Grip - Burnt Bronze
Sale: $8.99MSRP: $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...Sale: $8.99MSRP: $19.99 -
On Sale
Ghost Grip - OD Green
Sale: $8.99MSRP: $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...Sale: $8.99MSRP: $19.99 -
Out of stockOn Sale
Ghost Grip - Tungsten Gray
Sale: $8.99MSRP: $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...Sale: $8.99MSRP: $19.99 -
Grid Defense Pistol Lower Parts Kit with Fin
$129.98Grid Defense Pistol Lower Parts Kit with Fin Grid Defense Pistol Stabilizing Fin -Constructed from Reinforced Polymer -Increases Weapon Control and Stability -Weighs 5.7oz -Fits Pistol Buffer Tube up to 1.25" (Not Included) PISTOL BUFFER TUBE...$129.98 -
On Sale
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 -
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 -
Out of stock
Armaspec Sound Mitigation Buffer Gen 3 - 9MM
$59.99Armaspec Sound Mitigation Buffer Gen 3 - 9MM Buffer Weight - 9.88oz Actual Weight/6.9oz Equivalent Weight Single-stage captured drop-in replacement for your standard buffer and spring Reduce felt recoil Keep the buffer spring from rubbing against...$59.99 -
Out of stock
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 -
Out of stock
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