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Lower Parts

Top Sellers

Mil-Spec Heavy-Duty AR-15 6-Position Buffer Tube ONLY (No Other Parts)
Mil-Spec Heavy-Duty AR-15 6-Position Buffer Tube ONLY (No Other Parts)
$14.99 $9.99
Recoil Technologies Complete Mil-Spec AR-15 Lower Parts Kit
Recoil Technologies Complete Mil-Spec AR-15 Lower Parts Kit
$39.99 $29.99
Davidson Defense AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
Davidson Defense AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$12.99 $6.49
SET OF 2 Anti Walk Ar-15 M16 Receiver Pins Black
SET OF 2 Anti Walk Ar-15 M16 Receiver Pins Black
$14.99 $6.99
Mercury Precision Match Grade AR-15 Lower Parts Kit - Straight Trigger Shoe
Mercury Precision Match Grade AR-15 Lower Parts Kit - Straight Trigger Shoe
$54.99 $39.99
LPK Replacement Disconnector
LPK Replacement Disconnector
$4.99 $2.99
LPK Selector Spring
LPK Selector Spring
$4.99 $0.99
Recoil Technologies LR-308 / AR-10 Mil-Spec Quality Lower Parts Kit (LPK)
Recoil Technologies LR-308 / AR-10 Mil-Spec Quality Lower Parts Kit (LPK)
$59.99 $44.99
Extended 2 Piece Mag Release, AR15
Extended 2 Piece Mag Release, AR15
$14.99 $7.49
LPK Replacement Bolt Catch Spring
LPK Replacement Bolt Catch Spring
$4.99 $0.99
Davidson Defense AR15 Stainless Steel Anti-Walk Pin Set - USA Made
Davidson Defense AR15 Stainless Steel Anti-Walk Pin Set - USA Made
$9.99 $6.99
Davidson Defense Anti-Slip Textured Ergonomic Sniper Pistol Grip - USA Made PS-PG23 B
Davidson Defense Anti-Slip Textured Ergonomic Sniper Pistol Grip - USA Made PS-PG23 B
$9.99 $4.99
LPK Replacement Long Front Pivot Pin
LPK Replacement Long Front Pivot Pin
$9.99 $3.99
KAK Industry AR-15
KAK Industry AR-15 "Lite" Lower Parts Kit
$29.99 $24.99
Davidson Defense AR-15 H3 Carbine Buffer - 5.5 oz
Davidson Defense AR-15 H3 Carbine Buffer - 5.5 oz
$79.99 $59.99
LPK Replacement Selector Detent
LPK Replacement Selector Detent
$4.99 $0.99

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Products [226]

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Anti-Walk Pin Set with Torque Screw Head
Anti-Walk Pin Set with Torque Screw Head
$9.99 $4.99 Sale
In Stock
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Mercury Precision Standard AR Trigger Spring for LPK Assembly
Mercury Precision Standard AR Trigger Spring for LPK Assembly
$4.99 $0.75 Sale
In Stock
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Davidson Defense Nickel Boron BCG Combo w/ Davidson Defense
Davidson Defense Nickel Boron BCG Combo w/ Davidson Defense "Blue Ridge" Drop in Trigger
$284.99 $214.99 Sale
In Stock
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Magpul BTR Pistol Brace & Omega Mfg. Mil Spec 9mm Buffer Tube Kit
Magpul BTR Pistol Brace & Omega Mfg. Mil Spec 9mm Buffer Tube Kit
$129.99 $99.99 Sale
In Stock
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Magpul BTR Pistol Brace & Omega Mfg. Mil Spec Buffer Tube Kit
Magpul BTR Pistol Brace & Omega Mfg. Mil Spec Buffer Tube Kit
$114.99 $84.99 Sale
In Stock
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Sota Arms AR10/LR308 Lower Receiver, DPMS, Patriot Design, Black Anodized, Stripped
Sota Arms AR10/LR308 Lower Receiver, DPMS, Patriot Design, Black Anodized, Stripped
$159.99 $119.99 Sale
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Recoil Technologies AR-15 Ambidextrous Safety Selector
Recoil Technologies AR-15 Ambidextrous Safety Selector
$14.99 $9.99 Sale
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KAK Shockwave Blade Stealth FDE - Mil-Spec Buffer Tube Compatible, Rapid Adjust
KAK Shockwave Blade Stealth FDE - Mil-Spec Buffer Tube Compatible, Rapid Adjust
$49.99 $39.99 Sale
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Davidson Defense AR-15 H3 Carbine Buffer - 5.5 oz
Davidson Defense AR-15 H3 Carbine Buffer - 5.5 oz
$79.99 $59.99 Sale
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Lower Enhancement Parts Combo
Lower Enhancement Parts Combo "Dimple" Featuring The ELD Performance Enhanced Bolt Catch AR-15
$69.99 $49.99 Sale
In Stock
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Magpul BTR Pistol Brace, Black, AR-15, for Standard Mil-Spec Buffer Tube
Magpul BTR Pistol Brace, Black, AR-15, for Standard Mil-Spec Buffer Tube
$69.99 $56.99 Sale
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AR-15 Drop-In Trigger Upgrade Kit:
AR-15 Drop-In Trigger Upgrade Kit: "Match Grade Black" Featuring The JE Machine AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$119.99 $99.99 Sale
In Stock
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AR-15 Drop-In Trigger Upgrade Kit:
AR-15 Drop-In Trigger Upgrade Kit: "Crimson Red" Featuring The JE Machine AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$124.99 $99.99 Sale
In Stock
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AR-15 Drop-In Trigger Upgrade Kit:
AR-15 Drop-In Trigger Upgrade Kit: "Skeletonized Red" Featuring The JE Machine AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$119.99 $89.99 Sale
In Stock
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AR-15 Drop-In Trigger Upgrade Kit:
AR-15 Drop-In Trigger Upgrade Kit: "Saber Black" Featuring The JE Machine AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$144.99 $109.99 Sale
In Stock
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AR-15 Drop-In Trigger Upgrade Kit:
AR-15 Drop-In Trigger Upgrade Kit: "Saber Blue" Featuring The JE Machine AR Anti-Walk/Anti-Rotation Trigger & Hammer Pins
$144.99 $109.99 Sale
In Stock
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.308 Rifle Length Buffer Tube Recoil Spring
.308 Rifle Length Buffer Tube Recoil Spring
$14.99 $9.99 Sale
In Stock
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Mercury Precision Match Grade AR-15 Lower Parts Kit - Straight Trigger Shoe
Mercury Precision Match Grade AR-15 Lower Parts Kit - Straight Trigger Shoe
$54.99 $39.99 Sale
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Gauntlet Arms Polymer Stabilizing Brace - Black
Gauntlet Arms Polymer Stabilizing Brace - Black
$19.99 $14.99 Sale
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Buffer Tube Kits: Recoil Technologies End Plate + Mil-Spec Heavy-Duty 6-Position Buffer Tube + AR-15 Carbine Recoil Spring + AR-15 Standard Carbine Recoil Buffer + AR-15 Carbine Castle Nut + Adaptive Tactical AR-15 EX Performance Adjustable Stock
Buffer Tube Kits: Recoil Technologies End Plate + Mil-Spec Heavy-Duty 6-Position Buffer Tube + AR-15 Carbine Recoil Spring + AR-15 Standard Carbine Recoil Buffer + AR-15 Carbine Castle Nut + Adaptive Tactical AR-15 EX Performance Adjustable Stock
$74.99 $54.99 Sale
In Stock
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Trigger Upgrade Kit: KAK Industry Lower Parts Kit + Davidson Defense Wasatch AR-15 M4 Drop-In Full Trigger System + Recoil Technologies AR-15 Ambi 60/90 Safety Selector
Trigger Upgrade Kit: KAK Industry Lower Parts Kit + Davidson Defense Wasatch AR-15 M4 Drop-In Full Trigger System + Recoil Technologies AR-15 Ambi 60/90 Safety Selector
$179.99 $134.99 Sale
In Stock
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KAK Industry 9 Position A5 Length, Long-Carbine, Extended Buffer Tube
KAK Industry 9 Position A5 Length, Long-Carbine, Extended Buffer Tube
$49.99 $34.99 Sale
In Stock
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Finish Your Lower Kit: JE Machine AR15 LPK w/ Ambi Safety Selector + Recoil Technologies Mil-Spec Buffer Kit + Gauntlet Arms Minimalist AR-15 Stock
Finish Your Lower Kit: JE Machine AR15 LPK w/ Ambi Safety Selector + Recoil Technologies Mil-Spec Buffer Kit + Gauntlet Arms Minimalist AR-15 Stock
$109.99 $79.99 Sale
In Stock
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Finish Your Lower Kit: JE Machine AR15 LPK w/ Ambi Safety Selector + Recoil Technologies Mil-Spec Buffer Kit + Adaptive Tactical AR-15 EX Performance Adjustable Stock
Finish Your Lower Kit: JE Machine AR15 LPK w/ Ambi Safety Selector + Recoil Technologies Mil-Spec Buffer Kit + Adaptive Tactical AR-15 EX Performance Adjustable Stock
$129.99 $99.99 Sale
In Stock
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Our MMC Armory Lower Parts provide a wide variety of Lower Parts Kits and individual lower parts components. These are essential parts to finishing your build and a great way to add some personal touches to your AR-15, LR-308, and Glock compatible platforms. Some of the top brands featured are CMMG, Hiperfire, Geissele, Armaspec, Strike Industries, Adaptive Tactical, Rise Armement, and many more. Combine these parts with our MMC Bundles AR-15 80% Lowers & Frames for a fast track to completion.
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