Shop All - Firearm Accessories & Parts - AR15 Parts & Accessories - Lower Parts - Heart of Texas Armory

LBE Unlimited

LBE Unlimited Pistol Buffer Kit - Anodized Black Finish

MSRP: $62.95

Was:

Now: $57.95

Add to Cart
LBE Unlimited

LBE Unlimited Pistol Buffer Kit - Anodized Red Finish

MSRP: $62.95

Was:

Now: $45.95

Add to Cart
Aero Precision

Aero Precision AR15 MOE Lower Parts Kit - Flat Dark Earth

MSRP: $110.00

Was:

Now: $98.99

Add to Cart
Aero Precision

Aero Precision AR15 MOE Lower Parts Kit - Black

MSRP: $110.00

Was:

Now: $94.95

Add to Cart
Fortis MFG

Fortis AR15/AR10 Billet Magazine Release Button - OD Green

MSRP: $9.95

Was:

Now: $7.95

Add to Cart
Fortis MFG

Fortis AR15/AR10 Billet Magazine Release Button - Black

MSRP: $9.95

Was:

Now: $7.95

Add to Cart
Fortis MFG

Fortis Contractor Series AR15/AR10 Billet Magazine Catch - Black Nitride, Magazine Catch Only

MSRP: $21.95

Was:

Now: $18.95

Add to Cart
Fortis MFG

Fortis Billet AR15/AR10 Magazine Catch - Flat Dark Earth, Magazine Catch Only

MSRP: $17.95

Was:

Now: $14.95

Add to Cart
TacFire Inc.

Tacfire AR15 Pistol Buffer Tube Kit - with Standard Endplate

MSRP: $31.95

Was:

Now: $29.95

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Gray Finish

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Red Finish

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Flat Dark Earth Finish

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Blue Finish

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Gold, Anodized Finish

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Flat Dark Earth, Anodized Finish

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Blue, Anodized Finish

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Gray, Anodized Finish

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
ET Arms Inc

ET Arms Inc Carbon Fiber Buffer Tube Kit - Black, Mil-Spec for AR-15, Includes Ambi Sling Endplate

MSRP: $47.95

Was:

Now: $42.95

Add to Cart
Spikes Tactical

Spike's Tactical ST-9X Heavy 9mm Buffer - Fits AR-15 Rifles, 7.7 oz, Stainless Finish

MSRP: $51.95

Was:

Now: $44.96

Add to Cart
Yankee Hill Machine

Yankee Hill Machine 9MM AR9 Buffer - Stainless Steel, 5.9 Oz

MSRP: $50.00

Was:

Now: $41.30

Add to Cart
CMMG Inc.

CMMG MK9 9mm Carbine Buffer - Fits AR Rifles, Black

MSRP: $32.95

Was:

Now: $28.95

Add to Cart
Maxim Defense

Maxim Defense JP Silent Capture Spring - Heavy Buffer - AR-15, Only Fits Maxim's CQB Stock

MSRP: $164.95

Was:

Now: $156.70

Add to Cart
Maxim Defense

Maxim Defense JP Silent Capture Spring - Standard Buffer - AR-15, Only Fits Maxim's CQB Stock

MSRP: $139.95

Was:

Now: $132.95

Add to Cart
Radikal Arms

Radikal Arms 180060 Micro Pistol Buffer Tube Kit - 3.5" Black Anodized Aluminum Tube with Internal Parts - 84847

MSRP: $142.95

Was:

Now: $124.95

Add to Cart

LBE Unlimited

LBE Unlimited Pistol Buffer Kit - Anodized Black Finish

AR15 Pistol Buffer Tube Kit, Black Kit Includes: AR15 Pistol Buffer Tube, Black. Protective Foam Sleeve Recoil Spring Recoil Buffer Receiver End Plate Castle Nut

MSRP: $62.95

Was:

Now: $57.95

Add to Cart
LBE Unlimited

LBE Unlimited Pistol Buffer Kit - Anodized Red Finish

AR15 Pistol Buffer Tube Kit, Red Kit Includes: AR15 Pistol Buffer Tube, Red. Protective Foam Sleeve Recoil Spring Recoil Buffer Receiver End Plate Castle Nut

MSRP: $62.95

Was:

Now: $45.95

Add to Cart
Aero Precision

Aero Precision AR15 MOE Lower Parts Kit - Flat Dark Earth

Aero Precision’s line of Lower Parts Kits featuring Magpul™ Grips is designed to be versatile for your needs. Each kit is available with MOE® and MOE SL® Grip Options in Black and FDE. Buy with our tried and true mil-spec Fire Control...

MSRP: $110.00

Was:

Now: $98.99

Add to Cart
Aero Precision

Aero Precision AR15 MOE Lower Parts Kit - Black

Aero Precision’s line of Lower Parts Kits featuring Magpul™ Grips is designed to be versatile for your needs. Each kit is available with MOE® and MOE SL® Grip Options in Black and FDE. Buy with our tried and true mil-spec Fire Control...

MSRP: $110.00

Was:

Now: $94.95

Add to Cart
Fortis MFG

Fortis AR15/AR10 Billet Magazine Release Button - OD Green

The Fortis Billet Mag Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade aluminum. We...

MSRP: $9.95

Was:

Now: $7.95

Add to Cart
Fortis MFG

Fortis AR15/AR10 Billet Magazine Release Button - Black

The Fortis Billet Mag Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade aluminum. We...

MSRP: $9.95

Was:

Now: $7.95

Add to Cart
Fortis MFG

Fortis Contractor Series AR15/AR10 Billet Magazine Catch - Black Nitride, Magazine Catch Only

The Fortis Billet Mag Catch is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade aluminum or 303...

MSRP: $21.95

Was:

Now: $18.95

Add to Cart
Fortis MFG

Fortis Billet AR15/AR10 Magazine Catch - Flat Dark Earth, Magazine Catch Only

The Fortis Billet Mag Catch is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade aluminum or 303...

MSRP: $17.95

Was:

Now: $14.95

Add to Cart
TacFire Inc.

Tacfire AR15 Pistol Buffer Tube Kit - with Standard Endplate

AR-15 Mil-Spec Pistol Buffer Tube Kit Includes: (1) Mil-Spec Pistol Buffer Tube w/ Foam Insert (1) 3 oz. Buffer (1) Carbine length buffer spring (1) Regular End Plate (1) Castle Nut

MSRP: $31.95

Was:

Now: $29.95

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Gray Finish

When designing our new Lightweight Enhanced (LE™) Castle Nut & End Plate System, we came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With our two lockdown systems (K1 & K2), we've engineered a...

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Red Finish

When designing our new Lightweight Enhanced (LE™) Castle Nut & End Plate System, we came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With our two lockdown systems (K1 & K2), we've engineered a...

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Flat Dark Earth Finish

When designing our new Lightweight Enhanced (LE™) Castle Nut & End Plate System, we came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With our two lockdown systems (K1 & K2), we've engineered a...

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Lightweight Enhanced AR15 End Plate - K1 System (Tapered) Castle Nut, Blue Finish

When designing our new Lightweight Enhanced (LE™) Castle Nut & End Plate System, we came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With our two lockdown systems (K1 & K2), we've engineered a...

MSRP: $46.95

Was:

Now: $44.60

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Gold, Anodized Finish

*CONTACT US FOR A SPECIAL COUPON CODE!* When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown...

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Flat Dark Earth, Anodized Finish

*CONTACT US FOR A SPECIAL COUPON CODE!* When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown...

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Blue, Anodized Finish

*CONTACT US FOR A SPECIAL COUPON CODE!* When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown...

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
Fortis MFG

Fortis Light Weight K2 Castle Nut and End Plate - Black and Gray, Anodized Finish

*CONTACT US FOR A SPECIAL COUPON CODE!* When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown...

MSRP: $54.95

Was:

Now: $54.10

Add to Cart
ET Arms Inc

ET Arms Inc Carbon Fiber Buffer Tube Kit - Black, Mil-Spec for AR-15, Includes Ambi Sling Endplate

This amazing super light-weight Mil-spec buffer tube is engineered using carbon-fiber reinforced composite material, more resilient to damage than aluminum. This tube with castle nut & ambi end plate sets standard for the next generation of AR...

MSRP: $47.95

Was:

Now: $42.95

Add to Cart
Spikes Tactical

Spike's Tactical ST-9X Heavy 9mm Buffer - Fits AR-15 Rifles, 7.7 oz, Stainless Finish

Spike’s Tactical stainless steel heavy buffer for use in a carbine stock. The ST-9X is a dedicated 9mm buffer due to its extended length. Its extended length helps eliminate the problem of breaking bolt catches. The buffer will smooth the gun out,...

MSRP: $51.95

Was:

Now: $44.96

Add to Cart
Yankee Hill Machine

Yankee Hill Machine 9MM AR9 Buffer - Stainless Steel, 5.9 Oz

Stainless Steel buffer for carbine stocks. Designed with extra weight and length for 9mm. The added length helps prevent breakage of the bolt catch. Includes a mil. spec. bumper Weight is 5.9 oz.

MSRP: $50.00

Was:

Now: $41.30

Add to Cart
CMMG Inc.

CMMG MK9 9mm Carbine Buffer - Fits AR Rifles, Black

CMMG offers replacement components for the AR-15 that are made to strict military specifications. These high quality components provide excellent fit and reliable function. These parts are perfect for upgrading existing components or replacing worn or...

MSRP: $32.95

Was:

Now: $28.95

Add to Cart
Maxim Defense

Maxim Defense JP Silent Capture Spring - Heavy Buffer - AR-15, Only Fits Maxim's CQB Stock

The JP Silent Captured Spring Systems are manufactured exclusively for Maxim Defense Industries to work with the Maxim Defense CQB Stock System. Choose from the standard/carbine weight, heavy weight and 9mm weight Silent Captured Spring Systems. The...

MSRP: $164.95

Was:

Now: $156.70

Add to Cart
Maxim Defense

Maxim Defense JP Silent Capture Spring - Standard Buffer - AR-15, Only Fits Maxim's CQB Stock

The JP Silent Captured Spring Systems are manufactured exclusively for Maxim Defense Industries to work with the Maxim Defense CQB Stock System. Choose from the standard/carbine weight, heavy weight and 9mm weight Silent Captured Spring Systems. The...

MSRP: $139.95

Was:

Now: $132.95

Add to Cart
Radikal Arms

Radikal Arms 180060 Micro Pistol Buffer Tube Kit - 3.5" Black Anodized Aluminum Tube with Internal Parts - 84847

Material: 7075-T6 Aluminum Finish: Black Type III Hard Coat Anodized, Steel Castle Nut, Steel End Plate, Steel Buffer Tube Cap, Aluminum Stubby Buffer Tube, Steel Bolt Carrier Insert, Steel Guide Rod Assembly, Steel Proprietary Recoil...

MSRP: $142.95

Was:

Now: $124.95

Add to Cart