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Rifle Lower & Upper Parts Kits

47 Items

Rifle Lower & Upper Parts Kits — 47 Products In Stock / 6 Models

Our Rifle Lower & Upper Parts Kits lineup includes 47 in-stock products selected from the brands serious shooters and outdoorsmen rely on. Enjoy savings on qualifying orders, and all Brownells brand products backed by our Forever Guarantee®.

You'll find options across Lower Parts Kits, Repair Parts Kits, Upper Parts Kits, & Rifle Parts Kits from 26 premium brands like AERO PRECISION, CMMG, COLT, RISE ARMAMENT, with detailed specs to help you compare quality, materials, and performance. Verified buyers give our Rifle Lower & Upper Parts Kits 4.4 Ratings out of 426 Reviews from verified buyers, a strong signal you can shop with confidence.

Whether you are gearing up for the range, the field, or daily carry, we stand behind every Rifle Lower & Upper Parts Kits product we ship. Visit our full Rifle Parts category for the complete selection of related gear.

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Products:  1  –  32  of 88
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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)

$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 BRAVO COMPANY - AR-15 BCMGUNFIGHTER™ ENHANCED LOWER PARTS KITS BRAVO COMPANY - AR-15 BCMGUNFIGHTER™ ENHANCED LOWER PARTS KITS
5 Stars
(4.5)

$119.95

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 CMMG - AR-15/M16 LOWER SPRING KIT CMMG - AR-15/M16 LOWER SPRING KIT
5 Stars
(4.3)

$12.49

In stock
Product badge M & P - M&P AR-15 COMPLETE UPPER PARTS KIT M & P - M&P AR-15 COMPLETE UPPER PARTS KIT
5 Stars
(5.0)

$25.99

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

$122.00

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 RISE ARMAMENT - AR-15 LOWER RECEIVER PARTS KIT RISE ARMAMENT - AR-15 LOWER RECEIVER PARTS KIT
5 Stars
(4.7)

$44.99

In stock
Product badge BROWNELLS - AR-15/M16 ARMORER'S SMALL PARTS KIT BROWNELLS - AR-15/M16 ARMORER'S SMALL PARTS KIT
5 Stars
(4.0)

$599.99

In stock
Product badge CMMG - BOLT REHAB KIT FOR AR-15/M16 CMMG - BOLT REHAB KIT FOR AR-15/M16
5 Stars
(3.0)

$38.08

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 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 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
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 LUTH-AR LLC - AR-15 LOWER PARTS KIT LUTH-AR LLC - AR-15 LOWER PARTS KIT
5 Stars
(4.6)

$55.92

In stock
Product badge M & P - M&P AR ESSENTIALS KIT M & P - M&P AR ESSENTIALS KIT
5 Stars
(0.0)

$9.99

In stock
Product badge BROWNELLS - AR-15/M16 BOLT CARRIER COMPLETION KIT BROWNELLS - AR-15/M16 BOLT CARRIER COMPLETION KIT
5 Stars
(3.7)

$46.99

In 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

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 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

In stock
Product badge LUTH-AR LLC - AR-15 BUILDER KIT LUTH-AR LLC - AR-15 BUILDER KIT
5 Stars
(3.6)

$38.99

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
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

Select Items In Stock
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 CMMG - UPPER SMALL PARTS KIT FOR AR-15/M16 CMMG - UPPER SMALL PARTS KIT FOR AR-15/M16
5 Stars
(0.0)

$13.54

In stock
Product badge CMMG - 308 AR MK3 BOLT REHAB KIT CMMG - 308 AR MK3 BOLT REHAB KIT
5 Stars
(0.0)

$64.62

In 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

In stock
Product badge CMMG - AR-15/M16 ENHANCED REPAIR KIT CMMG - AR-15/M16 ENHANCED REPAIR KIT
5 Stars
(5.0)

$36.92

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 RISE ARMAMENT - PREMIUM LOWER RECEIVER PARTS KIT FOR AR-15 RISE ARMAMENT - PREMIUM LOWER RECEIVER PARTS KIT FOR AR-15
5 Stars
(0.0)

$129.99

In stock
Product badge CMMG - AR-15/M16 22LR BOLT REHAB KIT CMMG - AR-15/M16 22LR BOLT REHAB KIT
5 Stars
(5.0)

$28.46

In stock
Products:  1  –  32  of 88