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Lower Parts Kits 25 Items

Lower Parts Kits Up To 20% Off— 25 Products In Stock / 3 Models

Lower Parts Kits are purpose-built components designed to deliver consistent performance for the specific needs of recreational shooters, hunters, and professionals. Our lineup includes 25 in-stock products with savings Up To 20% Off on qualifying orders, and all Brownells brand products backed by our Forever Guarantee®.

We carry Lower Parts Kits from 21 of the most respected brands in the industry, including AERO PRECISION, CMMG, COLT, KAK INDUSTRY LLC.. Verified buyers rate our Lower Parts Kits 4.4 Ratings out of 343 Reviews from verified buyers, reflecting the durability and craftsmanship that earn repeat purchases.

From the range to the field, every Lower Parts Kits product we ship meets the standards our customers have trusted since 1939. Continue browsing our full selection of Rifle Lower & Upper Parts Kits for more great products at Brownells.

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Products:  1  –  32  of 57
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Product badge GEISSELE AUTOMATICS LLC - AR-15 ULTRA DUTY LOWER PARTS KITS GEISSELE AUTOMATICS LLC - AR-15 ULTRA DUTY LOWER PARTS KITS
5 Stars
(5.0)

$121.99 - $125.99

$153.00 - $158.00

In stock
Product badge CMMG - GUNBUILDER'S LOWER PARTS KIT FOR AR-15 LOWER CMMG - GUNBUILDER'S LOWER PARTS KIT FOR AR-15 LOWER
5 Stars
(4.6)

$34.99

In stock
Product badge CMMG - AR-15/M16 LOWER SPRING KIT CMMG - AR-15/M16 LOWER SPRING KIT
5 Stars
(4.3)

$12.49

In stock
Product badge CMMG - AR-15 LOWER PARTS KIT CMMG - AR-15 LOWER PARTS KIT
5 Stars
(4.1)

$56.99

In stock
Product badge BRAVO COMPANY - AR-15 BCMGUNFIGHTER™ ENHANCED LOWER PARTS KITS BRAVO COMPANY - AR-15 BCMGUNFIGHTER™ ENHANCED LOWER PARTS KITS
5 Stars
(4.5)

$119.95

Select Items In Stock
Product badge SONS OF LIBERTY GUN WORKS - BLASTER LOWER PARTS STARTER KIT FOR AR-15 SONS OF LIBERTY GUN WORKS - BLASTER LOWER PARTS STARTER KIT FOR AR-15
5 Stars
(4.7)

$69.99

In stock
Product badge ALG DEFENSE - AR-15 LOWER PARTS KIT W/ ACT TRIGGER ALG DEFENSE - AR-15 LOWER PARTS KIT W/ ACT TRIGGER
5 Stars
(4.8)

$112.99 - $113.00

In stock
Product badge LMT DEFENSE - LMT 5.56MM LOWER PARTS KIT LMT DEFENSE - LMT 5.56MM LOWER PARTS KIT
5 Stars
(0.0)

$141.30 - $322.65

In stock
Product badge SONS OF LIBERTY GUN WORKS - BLASTER GUTS LOWER PARTS KIT W/LIBERTY FIGHTING TRIGGER FOR AR15 SONS OF LIBERTY GUN WORKS - BLASTER GUTS LOWER PARTS KIT W/LIBERTY FIGHTING TRIGGER FOR AR15
5 Stars
(5.0)

$120.00

In stock
Product badge ZRO DELTA - AR-15 ELG LOWER PARTS KIT ZRO DELTA - AR-15 ELG LOWER PARTS KIT
5 Stars
(3.9)

$39.99 - $52.99

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Product badge GEISSELE AUTOMATICS LLC - AR-15 MIL-SPEC LOWER PARTS KIT W/ GRIP, NO TRIGGER GEISSELE AUTOMATICS LLC - AR-15 MIL-SPEC LOWER PARTS KIT W/ GRIP, NO TRIGGER
5 Stars
(4.0)

$54.99

$68.00

In stock
Product badge ALG DEFENSE - AR-15 LOWER PARTS KIT W/ QMS TRIGGER ALG DEFENSE - AR-15 LOWER PARTS KIT W/ QMS TRIGGER
5 Stars
(4.6)

$93.00 - $96.00

In stock
Product badge LMT DEFENSE - LMT .308 LOWER PARTS KIT LMT DEFENSE - LMT .308 LOWER PARTS KIT
5 Stars
(5.0)

$150.30 - $333.00

In stock
Product badge RISE ARMAMENT - OH SH#T SPARE PARTS KIT FOR AR-15 RISE ARMAMENT - OH SH#T SPARE PARTS KIT FOR AR-15
5 Stars
(5.0)

$15.99

In stock
Product badge CMMG - GUNBUILDER'S LOWER PARTS KIT FOR .308 AR LOWER CMMG - GUNBUILDER'S LOWER PARTS KIT FOR .308 AR LOWER
5 Stars
(3.0)

$49.23

In stock
STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT
5 Stars
(4.1)

$75.95

In stock
Product badge ARMASPEC - AR-15 GUN BUILDERS LOWER PARTS KITS STAINLESS .223/5.56 ARMASPEC - AR-15 GUN BUILDERS LOWER PARTS KITS STAINLESS .223/5.56
5 Stars
(3.6)

$67.49

In stock
STRIKE INDUSTRIES - AR308 ENHANCED LOWER PARTS KIT, NO TRIGGER, HAMMER, DISCONNECTOR STRIKE INDUSTRIES - AR308 ENHANCED LOWER PARTS KIT, NO TRIGGER, HAMMER, DISCONNECTOR
5 Stars
(4.3)

$53.95

In stock
Product badge GEISSELE AUTOMATICS LLC - AR-15 LOWER PARTS KIT GEISSELE AUTOMATICS LLC - AR-15 LOWER PARTS KIT
5 Stars
(3.5)

$49.99

$62.00

In stock
Product badge LUTH-AR LLC - AR-308 LOWER PARTS KIT LUTH-AR LLC - AR-308 LOWER PARTS KIT
5 Stars
(3.0)
Add to cart to see price

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STRIKE INDUSTRIES - AR-15/M16 LOWER RECEIVER GUNSMITH SPRING KIT STRIKE INDUSTRIES - AR-15/M16 LOWER RECEIVER GUNSMITH SPRING KIT
5 Stars
(3.0)

$8.95 - $95.95

In stock
Product badge M & P - M&P AR-15 CUSTOMIZABLE LOWER PARTS KIT M & P - M&P AR-15 CUSTOMIZABLE LOWER PARTS KIT
5 Stars
(4.3)

$37.99

In stock
Product badge BATTLE ARMS DEVELOPMENT INC. - AR-15 INVESTMENT CAST ENHANCED LOWER PARTS KIT BATTLE ARMS DEVELOPMENT INC. - AR-15 INVESTMENT CAST ENHANCED LOWER PARTS KIT
5 Stars
(4.0)

$34.95

In stock
Product badge ARMASPEC - AR-15 STAINLESS LOWER PARTS KITS .223/5.56 ARMASPEC - AR-15 STAINLESS LOWER PARTS KITS .223/5.56
5 Stars
(3.5)

$71.99

In stock
Product badge BATTLE ARMS DEVELOPMENT INC. - AR-15 INVESTMENT CAST COMPLETE ENHANCED LOWER PARTS KIT BATTLE ARMS DEVELOPMENT INC. - AR-15 INVESTMENT CAST COMPLETE ENHANCED LOWER PARTS KIT
5 Stars
(5.0)

$131.95

In stock
Product badge DANIEL DEFENSE - AR-15 LOWER PARTS KIT DANIEL DEFENSE - AR-15 LOWER PARTS KIT
5 Stars
(4.8)

$122.00

Out of Stock
Product badge LUTH-AR LLC - AR-15 LOWER PARTS KIT LUTH-AR LLC - AR-15 LOWER PARTS KIT
5 Stars
(4.6)

$55.92

Out of Stock
Product badge CMMG - AR-15/M16 ENHANCED REPAIR KIT CMMG - AR-15/M16 ENHANCED REPAIR KIT
5 Stars
(5.0)

$36.92

Out of Stock
Product badge WILSON COMBAT - AR-15 RECEIVER SMALL PARTS KIT WILSON COMBAT - AR-15 RECEIVER SMALL PARTS KIT
5 Stars
(4.5)

$51.95

Out of Stock
Product badge KAK INDUSTRY LLC. - LOWER PARTS KIT FOR AR-15 KAK INDUSTRY LLC. - LOWER PARTS KIT FOR AR-15
5 Stars
(5.0)

$31.99 - $50.99

Out of Stock
Product badge NEXT LEVEL ARMAMENT - MIL-SPEC LOWER PARTS KIT FOR AR-15 NEXT LEVEL ARMAMENT - MIL-SPEC LOWER PARTS KIT FOR AR-15
5 Stars
(0.0)

$63.00

Out of Stock
Product badge KAK INDUSTRY LLC. - AR-15 LOWER PARTS BASIC BUILD KIT KAK INDUSTRY LLC. - AR-15 LOWER PARTS BASIC BUILD KIT
5 Stars
(0.0)

$24.99

Out of Stock
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