Build Better With Brownells & Save 15% On $250+ Parts Order w/ Code: BUILDBETTER

Build Better With Brownells & Save 15% On $250+ Parts Order w/ Code: BUILDBETTER

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Rifle Lower & Upper Parts Kits

41 Items

Rifle Lower & Upper Parts Kits Up To 21% Off + Coupon - 41 Products In Stock / 4 Models

Browse 41 Rifle Lower & Upper Parts Kits from our Rifle Parts dept including Lower Parts Kits, Repair Parts Kits, Upper Parts Kits, & Rifle Parts Kits Up To 21% Off from TOP Brands including AERO PRECISION, CMMG, LUTH-AR LLC, & BATTLE ARMS DEVELOPMENT INC..

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

$134.10 - $296.10

In stock
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)

$145.00 - $150.00

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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)

$125.99

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

$34.99

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)

$26.99

In stock
Product badge AERO PRECISION - M5 FIELD REPAIR KIT FOR AR-308 AERO PRECISION - M5 FIELD REPAIR KIT FOR AR-308
5 Stars
(5.0)

$17.99

In stock
Product badge STERN DEFENSE, LLC - MAG-AD EJECTOR REPLACEMENT KIT STERN DEFENSE, LLC - MAG-AD EJECTOR REPLACEMENT KIT
5 Stars
(5.0)

$9.00

In stock
Product badge CMMG - AR-15 PARTS KIT HD PIVOT & TAKEDOWN PINS CMMG - AR-15 PARTS KIT HD PIVOT & TAKEDOWN PINS
5 Stars
(4.9)

$18.27 - $21.49

$22.99

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Product badge AERO PRECISION - AR-15/M5 FIX-IT KIT AERO PRECISION - AR-15/M5 FIX-IT KIT
5 Stars
(4.9)

$17.99

In stock
Product badge AERO PRECISION - AR15/M4E1 FIELD REPAIR KIT AERO PRECISION - AR15/M4E1 FIELD REPAIR KIT
5 Stars
(4.9)
Add to cart to see price

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

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

$54.98

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
(4.6)
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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)

$32.99

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

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Product badge ALG DEFENSE - AR-15 LOWER PARTS KIT W/ QMS TRIGGER ALG DEFENSE - AR-15 LOWER PARTS KIT W/ QMS TRIGGER
5 Stars
(4.5)

$93.00 - $96.00

In stock
Product badge STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT
5 Stars
(4.3)

$79.99

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
(4.2)

$67.49

In stock
Product badge CMMG - AR-15/M16 LOWER SPRING KIT CMMG - AR-15/M16 LOWER SPRING KIT
5 Stars
(4.2)

$15.99

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

$60.99

In stock
Product badge STRIKE INDUSTRIES - AR-15/M16 LOWER RECEIVER GUNSMITH SPRING KIT STRIKE INDUSTRIES - AR-15/M16 LOWER RECEIVER GUNSMITH SPRING KIT
5 Stars
(4.0)

$8.95 - $95.99

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Product badge AERO PRECISION - EPC LOWER PARTS KIT WITH MOE GRIP FOR AR-15 AERO PRECISION - EPC LOWER PARTS KIT WITH MOE GRIP FOR AR-15
5 Stars
(4.0)

$89.99

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Product badge EGW - EVOLVED AR LOWER PARTS KIT EGW - EVOLVED AR LOWER PARTS KIT
5 Stars
(4.0)

$86.25

$103.49

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
(4.0)

$71.99

In stock
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)
Add to cart to see price

In stock
Product badge CMMG - AR-15 SURVIVAL KIT CMMG - AR-15 SURVIVAL KIT
5 Stars
(4.0)

$52.99

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)

$33.99

In stock
Product badge ZRO DELTA - AR-15 ELG LOWER PARTS KIT ZRO DELTA - AR-15 ELG LOWER PARTS KIT
5 Stars
(3.8)

$39.99 - $52.99

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Product badge LUTH-AR LLC - AR-15 A3 UPPER RECEIVER PARTS KIT LUTH-AR LLC - AR-15 A3 UPPER RECEIVER PARTS KIT
5 Stars
(3.8)

$16.49

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 LUTH-AR LLC - AR-15 BUILDER KIT LUTH-AR LLC - AR-15 BUILDER KIT
5 Stars
(3.6)

$38.99

In stock
Product badge GEISSELE AUTOMATICS LLC - AR-15 LOWER PARTS KIT GEISSELE AUTOMATICS LLC - AR-15 LOWER PARTS KIT
5 Stars
(3.5)
Add to cart to see price

In stock
Products:   –   of 79