Lower Build Kits

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Lower Build Kits

AR15Discounts has a great selection of Lower Build Kits. We have budget friendly kits starting under $80 and premium kits at competitive prices.

Explore our Curated Selection of Lower Build Kits from Top Tier Brands

Aero Precision , Magpul , Dirty Bird Industries , B5 Systems , NBS

Sale!
Discount Mil-Spec Lower Build Kit
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Discount Mil-Spec Lower Build Kit

Save 50%
MSRP: $109.95
Original price was: $74.90.Current price is: $59.95.
Sale!
Omega AR-15 Lower Build Kit
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Omega AR-15 Lower Build Kit

Save 46%
MSRP: $119.95
Original price was: $79.85.Current price is: $61.95.
Sale!
Surplus AR-15 Mil-Spec Bare Bones Lower Build Kit
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Surplus AR-15 Mil-Spec Bare Bones Lower Build Kit

Save 54%
MSRP: $99.95
Original price was: $51.90.Current price is: $42.95.
Sale!
NBS Bare Bones Lower Build Kit
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NBS Bare Bones Lower Build Kit

Save 11%
MSRP: $59.95
Original price was: $51.90.Current price is: $49.30.
Sale!
Retro AR-15 A2 Lower Build Kit
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Retro AR-15 A2 Lower Build Kit

Save 31%
MSRP: $129.95
Original price was: $109.95.Current price is: $100.00.
RAVE-140 Lower Parts Kit Minus Grip
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RAVE-140 Lower Parts Kit Minus Grip

Save 32%
MSRP: $179.99
Original price was: $167.94.Current price is: $117.90.
MFT BATTLELINK Mil-Spec Minimalist Lower Build Kit
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MFT BATTLELINK Mil-Spec Minimalist Lower Build Kit

Save 100%
MSRP: $123.99
Original price was: $128.88.Current price is: $123.88.
Carbine Lower Build Kit Configurator
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Carbine Lower Build Kit Configurator

Sale!
NBS AR-15 Mil-Spec Carbine SOPMOD Lower Build Kit
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NBS AR-15 Mil-Spec Carbine SOPMOD Lower Build Kit

Save 53%
MSRP: $149.95
Original price was: $106.85.Current price is: $66.95.
Sale!
Alpha AR-15 Lower Build Kit
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Alpha AR-15 Lower Build Kit

Save 26%
MSRP: $119.99
From $90.06
Sale!
Rogers Super-Stoc Mil-Spec Lower Build Kit
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Rogers Super-Stoc Mil-Spec Lower Build Kit

Save 48%
MSRP: $154.95
From $76.95
Sale!
NBS CQB 4 Position Micro AR-15 Lower Build Kit
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NBS CQB 4 Position Micro AR-15 Lower Build Kit

Save 45%
MSRP: $109.99
Original price was: $76.85.Current price is: $56.95.
Sale!
Trinity Force Breach Blade Pistol Lower Build Kit
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Trinity Force Breach Blade Pistol Lower Build Kit

Save 40%
MSRP: $109.95
Original price was: $94.85.Current price is: $65.95.
Dirty Bird LE Style 2-Stage Lower Build Kit
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Dirty Bird LE Style 2-Stage Lower Build Kit

Save 100%
MSRP: $199.95
From $185.75
Sale!
Magpul SL-K Lower Build Kit Minus FCG
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Magpul SL-K Lower Build Kit Minus FCG

Save 29%
MSRP: $139.95
From $99.95
Dirty Bird A2 2-Stage Lower Build Kit
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Dirty Bird A2 2-Stage Lower Build Kit

Save 100%
MSRP: $209.95
From $195.85
Dirty Bird Magpul MOE Fixed 2-Stage Lower Build Kit
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Dirty Bird Magpul MOE Fixed 2-Stage Lower Build Kit

Save 100%
MSRP: $229.95
From $217.55
Sale!
KAK Shockwave Carbine 2M Blade Stabilizer Lower Build Kit
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KAK Shockwave Carbine 2M Blade Stabilizer Lower Build Kit

Original price was: $96.85.Current price is: $92.00.
Magpul CTR Carbine Lower Build Kit
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Magpul CTR Carbine Lower Build Kit

Save 35%
MSRP: $199.95
From $152.55
Magpul MOE SL-M Carbine Lower Build Kit
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Magpul MOE SL-M Carbine Lower Build Kit

Save 100%
MSRP: $179.95
Original price was: $146.43.Current price is: $129.75.