Memorial Day Savings: Take 15% Off $250+ Orders w/ Code: MD15

Memorial Day Savings: Take 15% Off $250+ Orders w/ Code: MD15

5164-Brownells-Site-Banner-Memorial-Day-themed-banners-CP-Hero-1920x385_v3
5164-Brownells-Site-Banner-Memorial-Day-themed-banners-CP-Hero-768x450_v3

SAVE 15% ON $250+
ORDERS W/ CODE: MD15

Shop The Deals!
4509 Site Banners - BRN180 Gen-3 Launch_Category Hero
4509 Site Banners - BRN180 Gen-3 Launch_Category Hero Mobile(1)

SEE WHAT YOU'VE
BEEN MISSING

Meet The BRN-180® Gen 3 Uppers
Introduce Me!

Rifle Lower & Upper Parts Kits

Items
Sort by:
Results
You're viewing results for:
Products:   –   of 81
Number of results: 
  • 32
  • 64
  • 96
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

In stock
AERO PRECISION - LOWER PARTS KITS W/ MOE SL GRIP FOR AR-15 AERO PRECISION - LOWER PARTS KITS W/ MOE SL GRIP FOR AR-15
5 Stars
(5.0)

$109.99

Select Items In Stock
AERO PRECISION - M4E1 LOWER PARTS KITS W/ MOE SL GRIP, NO TRIGGER GUARD FOR AR-15 AERO PRECISION - M4E1 LOWER PARTS KITS W/ MOE SL GRIP, NO TRIGGER GUARD FOR AR-15
5 Stars
(5.0)

$94.99

In stock
AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE SL GRIP, NO FCG FOR AR-15 AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE SL GRIP, NO FCG FOR AR-15
5 Stars
(5.0)

$54.99

Select Items In Stock
CMMG - AR-15/M16 ENHANCED REPAIR KIT CMMG - AR-15/M16 ENHANCED REPAIR KIT
5 Stars
(5.0)

$34.99

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

$7.65

$9.00

In stock
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
DANIEL DEFENSE - AR-15 LOWER PARTS KIT DANIEL DEFENSE - AR-15 LOWER PARTS KIT
5 Stars
(4.7)

$118.00

In stock
AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE GRIP FOR AR-15 AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE GRIP FOR AR-15
5 Stars
(4.6)

$89.99

Select Items In Stock
LUTH-AR LLC - AR-15 LOWER PARTS KIT LUTH-AR LLC - AR-15 LOWER PARTS KIT
5 Stars
(4.6)

$54.98

In stock
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)
Add to cart to see price

In stock
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
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
AERO PRECISION - LOWER PARTS KITS W/ MOE GRIP FOR AR-15 AERO PRECISION - LOWER PARTS KITS W/ MOE GRIP FOR AR-15
5 Stars
(4.3)

$98.99

Select Items In Stock
Product badge STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT STRIKE INDUSTRIES - AR ENHANCED LOWER RECEIVER PARTS KIT
5 Stars
(4.3)
Add to cart to see price

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

$35.99

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

$60.99

In stock
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

Select Items 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)
Add to cart to see price

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

$52.99

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

$39.99 - $52.99

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

$46.99

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

$38.99

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

$58.99

In stock
AERO PRECISION - LOWER PARTS KITS W/MOE GRIP, NO FIRE CONTROL GROUP FOR AR-15 AERO PRECISION - LOWER PARTS KITS W/MOE GRIP, NO FIRE CONTROL GROUP FOR AR-15
5 Stars
(3.3)

$58.99

Select Items In Stock
CMMG - GUNBUILDER'S LOWER PARTS KIT FOR .308 AR LOWER CMMG - GUNBUILDER'S LOWER PARTS KIT FOR .308 AR LOWER
5 Stars
(3.0)

$42.99

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

$125.10 - $287.10

Select Items In Stock
FIGHTLITE INDUSTRIES - MCR BOLT REHAB KIT FIGHTLITE INDUSTRIES - MCR BOLT REHAB KIT
5 Stars
(0.0)

$131.99

In stock
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
(0.0)

$120.00

In stock
Product badge SAKO - SAKO TRG M10 RECEIVER PARTS SET SAKO - SAKO TRG M10 RECEIVER PARTS SET
5 Stars
(0.0)

$76.52

$108.99

In stock
BROWNELLS BUNDLES - AR-15 UPPER RECEIVER COMPLETION KIT BROWNELLS BUNDLES - AR-15 UPPER RECEIVER COMPLETION KIT
5 Stars
(0.0)

$59.99

In stock
Product badge KAK INDUSTRY LLC. - AR-15 BOLT CARRIER COMPLETION KIT KAK INDUSTRY LLC. - AR-15 BOLT CARRIER COMPLETION KIT
5 Stars
(0.0)

$12.56 - $15.99

Select Items In Stock
M & P - M&P AR ESSENTIALS KIT M & P - M&P AR ESSENTIALS KIT
5 Stars
(0.0)

$9.99

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

$134.10 - $296.10

Out of Stock
RUGER - 10/22® RECEIVER PARTS KIT RUGER - 10/22® RECEIVER PARTS KIT
5 Stars
(5.0)

$128.99

Out of Stock
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

Out of Stock
AERO PRECISION - ENHANCED LOWER PARTS KIT W/MOE GRIP & TRIGGER GUARD FOR AR-15 AERO PRECISION - ENHANCED LOWER PARTS KIT W/MOE GRIP & TRIGGER GUARD FOR AR-15
5 Stars
(5.0)

$114.99

Out of Stock
AERO PRECISION - M5 LOWER PARTS KIT W/MOE SL GRIP FOR AR-308 AERO PRECISION - M5 LOWER PARTS KIT W/MOE SL GRIP FOR AR-308
5 Stars
(5.0)

$104.99

Out of Stock
AERO PRECISION - M5 LOWER PARTS KIT W/MOE SL GRIP NO FCG FOR AR-308 AERO PRECISION - M5 LOWER PARTS KIT W/MOE SL GRIP NO FCG FOR AR-308
5 Stars
(5.0)

$69.99

Out of Stock
AERO PRECISION - M5 LOWER PARTS KIT W/MOE GRIP NO FCG FOR AR-308 AERO PRECISION - M5 LOWER PARTS KIT W/MOE GRIP NO FCG FOR AR-308
5 Stars
(5.0)

$65.99

Out of Stock
AERO PRECISION - LOWER PARTS KITS W/MOE SL GRIP, NO FIRE CONTROL GROUP FOR AR15 AERO PRECISION - LOWER PARTS KITS W/MOE SL GRIP, NO FIRE CONTROL GROUP FOR AR15
5 Stars
(5.0)

$57.99 - $59.99

Out of Stock
AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE GRIP, NO FCG FOR AR-15 AERO PRECISION - M4E1 LOWER PARTS KITS W/MOE GRIP, NO FCG FOR AR-15
5 Stars
(5.0)

$54.99

Out of Stock
KAK INDUSTRY LLC. - AR-15 LOWER PARTS BASIC AMBI BUILD KIT KAK INDUSTRY LLC. - AR-15 LOWER PARTS BASIC AMBI BUILD KIT
5 Stars
(5.0)

$31.99

Out of Stock
BROWNELLS - AR-15/M16 SMALL PARTS KIT BROWNELLS - AR-15/M16 SMALL PARTS KIT
5 Stars
(5.0)

$29.99

Out of Stock
CMMG - AR-15/M16 22LR BOLT REHAB KIT CMMG - AR-15/M16 22LR BOLT REHAB KIT
5 Stars
(5.0)

$26.49

Out of Stock
AERO PRECISION - AR .308 UPPER PARTS KIT AERO PRECISION - AR .308 UPPER PARTS KIT
5 Stars
(5.0)

$22.99

Out of Stock
AERO PRECISION - M5 FIELD REPAIR KIT FOR AR-308 AERO PRECISION - M5 FIELD REPAIR KIT FOR AR-308
5 Stars
(5.0)

$17.99

Out of Stock
CMMG - AR-15 PARTS KIT HD PIVOT & TAKEDOWN PINS CMMG - AR-15 PARTS KIT HD PIVOT & TAKEDOWN PINS
5 Stars
(4.9)

$21.49

Out of Stock
AERO PRECISION - AR-15/M5 FIX-IT KIT AERO PRECISION - AR-15/M5 FIX-IT KIT
5 Stars
(4.9)

$17.99

Out of Stock
AERO PRECISION - AR15/M4E1 FIELD REPAIR KIT AERO PRECISION - AR15/M4E1 FIELD REPAIR KIT
5 Stars
(4.9)
Add to cart to see price

Out of Stock
AERO PRECISION - AR-15 UPPER PARTS KIT AERO PRECISION - AR-15 UPPER PARTS KIT
5 Stars
(4.8)
Add to cart to see price

Out of Stock
RISE ARMAMENT - AR-15 LOWER RECEIVER PARTS KIT RISE ARMAMENT - AR-15 LOWER RECEIVER PARTS KIT
5 Stars
(4.6)

$44.99

Out of Stock
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

Out of Stock
AERO PRECISION - M5 LOWER PARTS KIT W/MOE GRIP FOR AR-308 AERO PRECISION - M5 LOWER PARTS KIT W/MOE GRIP FOR AR-308
5 Stars
(4.5)

$104.99

Out of Stock
BROWNELLS BUNDLES - BRN-180 LOWER PARTS KIT BROWNELLS BUNDLES - BRN-180 LOWER PARTS KIT
5 Stars
(4.5)

$99.99

Out of Stock
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
COLT - LOWER RECEIVER PARTS KIT COLT - LOWER RECEIVER PARTS KIT
5 Stars
(4.4)

$119.99

Out of Stock
AERO PRECISION - LOWER PARTS KIT NO FCG/ PISTOL GRIP/ TRIGGERGUARD FOR AR-15 AERO PRECISION - LOWER PARTS KIT NO FCG/ PISTOL GRIP/ TRIGGERGUARD FOR AR-15
5 Stars
(4.3)
Add to cart to see price

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

$15.99

Out of Stock
AERO PRECISION - M5 LOWER PARTS KIT W/NO FCG OR PISTOL GRIP FOR AR-308 AERO PRECISION - M5 LOWER PARTS KIT W/NO FCG OR PISTOL GRIP FOR AR-308
5 Stars
(4.2)
Add to cart to see price

Out of Stock
BROWNELLS - AR-15/M16 ARMORER'S SMALL PARTS KIT BROWNELLS - AR-15/M16 ARMORER'S SMALL PARTS KIT
5 Stars
(4.0)

$599.99

Out of Stock
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)

$55.99

Out of Stock
AERO PRECISION - EPC LOWER PARTS KIT W/NO FCG, GRIP OR TRIGGER GUARD FOR AR-15 AERO PRECISION - EPC LOWER PARTS KIT W/NO FCG, GRIP OR TRIGGER GUARD FOR AR-15
5 Stars
(4.0)

$35.99

Out of Stock
RUGER - 10/22® RECEIVER PARTS KIT LESS TRIGGER RUGER - 10/22® RECEIVER PARTS KIT LESS TRIGGER
5 Stars
(3.4)

$53.99

Out of Stock
CMMG - BOLT REHAB KIT FOR AR-15/M16 CMMG - BOLT REHAB KIT FOR AR-15/M16
5 Stars
(3.0)

$34.99

Out of Stock
LUTH-AR LLC - AR-308 LOWER PARTS KIT LUTH-AR LLC - AR-308 LOWER PARTS KIT
5 Stars
(0.0)

$42.29 - $74.25

Out of Stock
CMMG - 308 AR MK3 BOLT REHAB KIT CMMG - 308 AR MK3 BOLT REHAB KIT
5 Stars
(0.0)

$50.99

Out of Stock
RISE ARMAMENT - AR-15 UPPER RECEIVER PARTS KIT RISE ARMAMENT - AR-15 UPPER RECEIVER PARTS KIT
5 Stars
(0.0)

$34.99

Out of Stock
BATTLE ARMS DEVELOPMENT INC. - AR-15 ENHANCED PIVOT & TAKEDOWN PINS BATTLE ARMS DEVELOPMENT INC. - AR-15 ENHANCED PIVOT & TAKEDOWN PINS
5 Stars
(0.0)

$26.95

Out of Stock
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
CMMG - UPPER SMALL PARTS KIT FOR AR-15/M16 CMMG - UPPER SMALL PARTS KIT FOR AR-15/M16
5 Stars
(0.0)

$13.49

Out of Stock
CMMG - 22 ARC SPRING KIT CMMG - 22 ARC SPRING KIT
5 Stars
(0.0)

$10.99

Out of Stock
KAK INDUSTRY LLC. - AR-15 MISSING PARTS KIT FOR LOWER RECEIVER KAK INDUSTRY LLC. - AR-15 MISSING PARTS KIT FOR LOWER RECEIVER
5 Stars
(0.0)

$8.99

Out of Stock
GENESIS ARMS LLC - GEN-12 BEEFUP KIT GENESIS ARMS LLC - GEN-12 BEEFUP KIT
5 Stars
(5.0)

$34.95

No longer available
Product badge EGW - EVOLVED AR LOWER PARTS KIT EGW - EVOLVED AR LOWER PARTS KIT
5 Stars
(4.0)

$64.69

$103.49

No longer available
CMC TRIGGERS - AR-15 LOWER PARTS KIT CMC TRIGGERS - AR-15 LOWER PARTS KIT
5 Stars
(3.3)

$33.99

No longer available
Products:   –   of 81