Lower Parts

24 of 428 Items
  • Rise Armament Premium AR15 Lower Parts Kit - Black

    Rise Armament

    Rise Armament Premium AR15 Lower Parts Kit - Black

    The RISE Premium Lower Parts Kit for AR-15s isn't your standard LPK. It includes all the essential pins, springs, and hardware to complete your lower, but what sets it apart are the premium RISE Armament components that elevate your rifle's performance...

    MSRP: $139.99
    $114.99
    Add to Cart
  • Strike Industries Sail Comp Black Steel with 1/2"- 28

    Strike Industries

    Strike Industries Sail Comp Black Steel with 1/2"- 28

    The SI Sail Comp is a high efficiency single chamber brake.  The Sail comp derives its name from the unique baffle shape that redirects muzzle gasses out and upward providing recoil mitigation and muzzle rise control.  The Sail Comp packs the...

    MSRP: $49.95
    $45.95
    Add to Cart
  • LBE Unlimited H3 Heavy Recoil Buffer Tube Kit - Black

    LBE Unlimited

    LBE Unlimited H3 Heavy Recoil Buffer Tube Kit - Black

    High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. This LBE Buffer Tube Kit...

    MSRP: $89.99
    $80.95
    Add to Cart
  • LBE Unlimited H1 Heavy Recoil Buffer Tube Kit - Black

    LBE Unlimited

    LBE Unlimited H1 Heavy Recoil Buffer Tube Kit - Black

    High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. This LBE Buffer Tube Kit...

    MSRP: $69.99
    $62.95
    Add to Cart
  • LBE Unlimited H2 Heavy Recoil Buffer Tube Kit - Black

    LBE Unlimited

    LBE Unlimited H2 Heavy Recoil Buffer Tube Kit - Black

    High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. This LBE Buffer Tube Kit...

    MSRP: $79.99
    $72.95
    Add to Cart
  • Colt Manufacturing Lower Parts Kit For AR15/M4 - Black

    Colt's Manufacturing LLC

    Colt Manufacturing Lower Parts Kit For AR15/M4 - Black

    Convenient kit of genuine Colt factory parts includes all the small parts needed to finish a small-pin AR-15 lower receiver, and install the trigger group and pistol grip of your choice. Or, use the kit to rebuild the worn internals of an old rifle and...

    MSRP: $119.00
    $109.95
    Add to Cart
  • KynSHOT R15015098 Buffer Spacer Weight KynSHOT R15015098 Buffer Spacer Weight KynSHOT R15015098 Buffer Spacer Weight

    Kynshot

    KynSHOT R15015098 Buffer Spacer Weight

    KynSHOT encourages everyone to follow the proper gun safety guidelines when handling any firearm at all times.  The KynSHOT Spacer Weight was designed in cooperation with Blitzkrieg Components and can be used with our PCC hydraulic buffers, and our...

    MSRP: $20.99
    $17.50
    Add to Cart
  • Armaspec Stealth Recoil Spring Kit G4 9MM - ARM253-9 Armaspec Stealth Recoil Spring Kit G4 9MM - ARM253-9

    Armaspec

    Armaspec Stealth Recoil Spring Kit G4 9MM - ARM253-9

    The Stealth Recoil Spring™ SRS™ GEN4 is a self-contained multi-stage drop-in replacement for your standard buffer and spring. The SRS™ is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube...

    MSRP: $109.99
    $76.49
    Add to Cart
  • Armaspec Stealth Recoil Spring Kit G4 - ARM253-H2 Armaspec Stealth Recoil Spring Kit G4 - ARM253-H2

    Armaspec

    Armaspec Stealth Recoil Spring Kit G4 - ARM253-H2

    The Stealth Recoil Spring™ SRS™ GEN4 is a self-contained multi-stage drop-in replacement for your standard buffer and spring. The SRS™ is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube...

    MSRP: $109.99
    $76.49
    Add to Cart
  • LBE Unlimited Mil-Spec Carbine Buffer Spring

    LBE Unlimited

    LBE Unlimited Mil-Spec Carbine Buffer Spring

    The LBE AR-15 Carbine Length Recoil Spring is made from high quality 17-7 Steel. These recoil springs are tough and dependable to ensure your rifle is at its peak performance. LBE Unlimited is a leading producer of US Made gun parts and accessories. LBE...

    MSRP: $6.99
    $4.95
    Add to Cart
  • Geissele Super Stainless Mag Catch (SSMC) - Black Geissele Super Stainless Mag Catch (SSMC) - Black Geissele Super Stainless Mag Catch (SSMC) - Black

    Geissele Automatics

    Geissele Super Stainless Mag Catch (SSMC) - Black

    The Geissele Mag Catch Assembly is a stronger replacement for the mil-spec mag catch. It’s made from Stainless Steel for its longevity and anti-rusting properties. This item is also found on the Super Duty and Ultra Duty Lower...

    MSRP: $26.00
    $21.00
    Add to Cart
  • B5 Systems SIERRA K EXTENSION KIT B5 Systems SIERRA K EXTENSION KIT B5 Systems SIERRA K EXTENSION KIT

    B5 Systems

    B5 Systems SIERRA K EXTENSION KIT

    The Sierra K Receiver Extension Kit is the proprietary mounting system for the Sierra K Buttstock. It consists of a reduced-length, mil-spec diameter, 7075 aluminum, 5-position receiver extension, a short heavy buffer (3.5 oz), extra power spring,...

    MSRP: $149.95
    $119.95
    Add to Cart
  • RISE Armament Enhanced Trigger Guard - Aluminium, Black RISE Armament Enhanced Trigger Guard - Aluminium, Black RISE Armament Enhanced Trigger Guard - Aluminium, Black

    Rise Armament

    RISE Armament Enhanced Trigger Guard - Aluminium, Black

    Using the detent push button at the front of the trigger guard, you can easily swing the trigger guard down. If you’re wearing big gloves or shooting in the cold, this will make more room for your hands inside the trigger pocket. Made from 6061...

    MSRP: $29.99
    $24.99
    Add to Cart
  • TAPCO Buffer Tube Kit

    Tapco

    TAPCO Buffer Tube Kit

    TAPCO Buffer Tube Kit - Take your AR-15 customization to the next level with the TAPCO Buffer Tube Kit, a comprehensive package designed to enhance the functionality and versatility of your rifle. This kit includes everything you need for a complete...

    MSRP: $79.95
    $54.99
    Add to Cart
  • Geissele Ultra Duty Mag Release Button

    Geissele Automatics

    Geissele Ultra Duty Mag Release Button

    The Geissele Ultra Duty® Mag Release Button features a texture matching our Maritime Bolt Catch, allowing you to complete the high end look of your carbine. This item is also found on the Super Duty and Ultra Duty Lower Parts Kits.

    MSRP: $15.00
    $12.00
    Add to Cart
  • Luth-AR H1 Heavy Carbine Buffer

    Luth-AR

    Luth-AR H1 Heavy Carbine Buffer

    H1 Carbine Buffer Body .223/5.56 The H1 Carbine Buffer Body contains 1 tungsten slug and 2 steel slugs in the buffer for a total weight of 3.80 oz or .25 lbs. Using a heavier AR-15 buffer helps reliable function with mid-length or short...

    MSRP: $36.95
    $29.95
    Add to Cart
  • LBE Unlimited H2 Heavy Gold Buffer - ARBUFF-H2

    LBE Unlimited

    LBE Unlimited H2 Heavy Gold Buffer - ARBUFF-H2

    If you're looking to slow down your BCG to ensure proper cycling then choose from one of LBE's three fine Heavy Recoil Buffers (H1, H2 or H3). The correct buffer weight depends on type and length of barrel gas port size gas system length as well as type...

    MSRP: $39.99
    $35.95
    Add to Cart
24 of 428 Items
!

© 2025 Heart of Texas Armory All rights reserved. | Sitemap