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30.00 TO 79.99, 300.00 TO 799.99, Available Outside USA, New, AR-15, Receiver Parts

(229 items)
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AR-15/M16 MIL-SPEC BUFFER TUBE ASSEMBLY

BROWNELLS

(In Stock)

$59.99

4.6 (17)
AR-15 CARBINE BUFFER KITS

AERO PRECISION

(In Stock)

$49.99 - $79.99

4.9 (13)
AR-15 GI LOWER PARTS KIT

KE ARMS LLC

(In Stock)

$59.99

2.3 (3)
AR-15 LOWER GUNBUILDER'S LOWER PARTS KIT

CMMG

(In Stock)

$39.99

4.6 (20)
AR-15 LOWER PARTS KIT 5.56

BROWNELLS

(In Stock)

$41.99

3.0 (28)
AR-15 LOWER PARTS KIT

CMMG

(In Stock)

$68.99 - $71.99

3.6 (13)
AR-15 RATCHET CASTLE NUT QD END PLATE SET

PRIMARY WEAPONS

(In Stock)

$34.95

4.7 (19)
AR-15 9MM UPPER RECEIVERS M-LOK ASSEMBLED

FOXTROT MIKE PRODUCTS

(In Stock)

$379.99 - $429.99

4.9 (36)
M4 5.56 UPPER RECEIVER GROUPS

COLT

(In Stock)

$549.99 - $969.99

4.5 (24)
6MM ARC COMPLETE UPPER RECEIVER GROUPS

AERO PRECISION

(In Stock)

$749.99 - $799.99

3.8 (11)
AR-15 HEAVY CARBINE BUFFERS

BROWNELLS

(In Stock)

$23.99 - $42.99

4.8 (11)
AR-15 KP-15 COMPLETE LOWER RECEIVERS AMBIDEXTROUS POLYMER

KE ARMS LLC

(In Stock)

$449.99

4.8 (6)
SUPER 42 BRAIDED WIRE SPRING & BUFFER

GEISSELE AUTOMATICS LLC

(In Stock)

$65.00

5.0 (17)
AR-15/M16 BUFFER TUBE ASSEMBLY

BROWNELLS

(In Stock)

$59.99

4.8 (8)
M16 R0901 5.56 COMPLETE UPPER RECEIVER GROUPS

COLT

(In Stock)

$529.99 - $729.99

0.0
AR-15 COMPLETE LOWER RECEIVER W/ BCMGUNFIGHTER™ STOCK

BRAVO COMPANY

(In Stock)

$395.00 - $395.99

4.4 (13)
STAG 15 5.56 16IN TACTICAL NITRIDE UPPER RECEIVERS

STAG ARMS

(In Stock)

$549.99 - $599.99

0.0
AR-15/M16 A1 RIFLE BUFFER TUBE ASSEMBLY

BROWNELLS

(In Stock)

$64.99

4.2 (9)
AR-15/M16 ARMORER'S SMALL PARTS KIT

BROWNELLS

(In Stock)

$599.99

4.0 (2)
17D MIL-STANDARD FORGED LOWER RECEIVER

17 DESIGN AND MANUFACTURING

(In Stock)

$69.99

0.0
AR-15 LOWER RECEIVER SEMI COMPLETE

SONS OF LIBERTY GUN WORKS

(In Stock)

$345.99

5.0 (1)
AR-15 BUFFER TUBE ASSEMBLY

LUTH-AR LLC

(In Stock)

$49.99

5.0 (2)
AR-15 ENHANCED BUFFERS CARBINE BLACK

PRIMARY WEAPONS

(In Stock)

$39.95 - $84.99

5.0 (2)
AR ENHANCED LOWER RECEIVER PARTS KIT

STRIKE INDUSTRIES

(In Stock)

$47.95 - $67.95

3.6 (8)
AR-15 80% POLYMER LOWER RECEIVER & JIG KIT

POLYMER80

(In Stock)

$68.99 - $75.99

2.8 (20)
STAG 15 5.56 10.5IN TACTICAL NITRIDE UPPER RECEIVERS

STAG ARMS

(In Stock)

$524.99 - $574.99

0.0
AR-15/M16 MIL-SPEC BUFFER TUBE

BRAVO COMPANY

(In Stock)

$39.99

4.0 (2)
New
AR-15 LOWER PARTS KITS W/ TRIGGER ASSEMBLIES

BROWNELLS

(In Stock)

$59.99 - $64.99

5.0 (1)
AR-15/CAR-15/ 308 AR STAINLESS STEEL SPRINGS

DAVID TUBB

(In Stock)

$27.99 - $30.99

4.5 (24)
STAG 15 5.56 7.5IN TACTICAL NITRIDE UPPER RECEIVERS

STAG ARMS

(In Stock)

$499.99 - $549.99

0.0
AR-15 COMPLETE LOWER RECEIVER W/ SBA3 PISTOL BRACE

BRAVO COMPANY

(In Stock)

$498.99

5.0 (3)
AR-15 RIFLE BUFFER TUBE KIT

BROWNELLS

(In Stock)

$64.99

4.1 (7)
M4 ENHANCED PATOL RIFLE 5.56 UPPER RECEIVER GROUPS

COLT

(In Stock)

$779.99 - $1,215.99

0.0
KE-15 BILLET COMPLETE LOWER RECEIVER W/ FLARED MAGWELL 5.56MM

KE ARMS LLC

(In Stock)

$699.95

0.0
AR-15 COMPLETE LOWER RECEIVER W/ BCMGUNFIGHTER SOPMOD STOCK

BRAVO COMPANY

(In Stock)

$395.00 - $395.99

5.0 (3)
FM-9 ENHANCED PISTOL UPPER RECEIVERS

FOXTROT MIKE PRODUCTS

(In Stock)

$329.00 - $349.00

0.0
AR-15 LOWER RECEIVER PARTS KIT

RISE ARMAMENT

(In Stock)

$37.99

5.0 (1)
AR-15 80% LOWER RECEIVER BLACK ANODIZED

ANDERSON MANUFACTURING

(In Stock)

$63.99

3.2 (6)
FM-9 ENHANCED FORWARD CHARGING UPPER RECEIVERS

FOXTROT MIKE PRODUCTS

(In Stock)

$399.00 - $459.00

5.0 (2)
AMBIDEXTROUS MAGAZINE RELEASE

STRIKE INDUSTRIES

(In Stock)

$33.95 - $35.95

2.8 (4)
KE-9 BILLET MIL-SPEC COMPLETE LOWER RECEIVER 9MM

KE ARMS LLC

(In Stock)

$399.95

0.0
AR-15/M16 NON-ROTATING PIN SET

KNS PRECISION, INC.

(In Stock)

$30.99 - $31.99

4.7 (21)
AR-15/M16 AMBI MAGAZINE RELEASE ASSEMBLY

KNIGHTS ARMAMENT

(In Stock)

$63.99

4.5 (6)
M4E1 ASSEMBLED UPPER RECEIVER 5.56 MID-LENGTH

AERO PRECISION

(In Stock)

$474.99 - $499.99

4.0 (1)
AR-15/M16 ENHANCED PIN SETS

BATTLE ARMS DEVELOPMENT INC.

(In Stock)

$29.99 - $40.99

4.5 (12)
AR-15 GUN BUILDERS LOWER PARTS KITS STAINLESS .223/5.56

ARMASPEC

(In Stock)

$51.99

3.7 (3)
M4 UPPER RECEIVER 5.56 SOCOM BARREL

COLT

(In Stock)

$629.99

0.0
AR-15 LOWER PARTS KIT

CRITICAL CAPABILITIES LLC

(In Stock)

$41.99 - $47.99

3.9 (32)
AR-15 M4E1 LOWER PARTS KITS W/ MOE GRIP

AERO PRECISION

(In Stock)

$74.99

4.6 (5)
AR-15 KP-15 PARTS KIT MIL-SPEC

KE ARMS LLC

(In Stock)

$69.99

0.0
AR-15 COMMERCIAL CARBINE BUFFER ASSEMBLY PACKAGE

LUTH-AR LLC

(In Stock)

$46.99

0.0
AR-15 BUFFER TUBE

BROWNELLS

(In Stock)

$33.99

0.0
AR-15 LOWER PARTS KIT

GEISSELE AUTOMATICS LLC

(In Stock)

$49.00

3.7 (24)
AR6721 RECEIVER EXTENSION

COLT

(In Stock)

$54.99

5.0 (3)
AR-15/M16 AMBIDEXTROUS MAGAZINE RELEASE

TROY INDUSTRIES, INC.

(In Stock)

$58.00

4.3 (12)
AR-15 FM-45 COMPLETE UPPER RECEIVERS

FOXTROT MIKE PRODUCTS

(In Stock)

$379.99 - $439.99

4.8 (6)
AR-15/M16 MIL-SPEC BUFFER TUBE

VLTOR WEAPON SYSTEMS

(In Stock)

$46.99

4.4 (9)
AR-15 COMPLETE UPPER RECEIVERS 9MM

FAXON FIREARMS

(In Stock)

$508.25 - $522.50

0.0
BRN-4 STRIPPED LOWER RECEIVER

BROWNELLS

(In Stock)

$399.99

4.6 (9)
AR-15 BILLET ULTIMATE DUST COVER 223

STRIKE INDUSTRIES

(In Stock)

$33.99 - $35.99

5.0 (1)
AR-15 CASTLE NUT TITANIUM

V SEVEN WEAPON SYSTEMS

(In Stock)

$29.99 - $33.99

0.0
AR-15 LOWER PARTS KIT

CMC TRIGGERS

(In Stock)

$40.99

3.3 (6)
AR-15 STRIPPED LOWER RECEIVER

ANDERSON MANUFACTURING

(In Stock)

$58.99

4.8 (36)
KE-9 BILLET COMPLETE LOWER RECEIVER W/ DROP-IN TRIGGER 9MM

KE ARMS LLC

(In Stock)

$599.95

0.0
ADJUSTABLE BUFFER

ODIN WORKS INC.

(In Stock)

$14.99 - $60.99

5.0 (2)
AR-15 SLH M-LOK ASSEMBLED UPPER RECEIVER

MIDWEST INDUSTRIES, INC.

(In Stock)

$535.99

3.0 (2)
AR-15 MAGAZINE RELEASE TITANIUM

V SEVEN WEAPON SYSTEMS

(In Stock)

$37.99 - $44.99

3.0 (1)
AR-15 QD ENDPLATE & CASTLE NUT COMBO TITANIUM

V SEVEN WEAPON SYSTEMS

(In Stock)

$58.99 - $67.99

5.0 (2)
AR-15/M16 CARBINE RECOIL BUFFERS

SPIKES TACTICAL

(In Stock)

$35.99 - $43.99

5.0 (27)
New
AR-15 BUFFER TUBE MIL-SPEC A5

SONS OF LIBERTY GUN WORKS

(In Stock)

$49.99

0.0
AR-15 ENHANCED MAGAZINE RELEASE AMBIDEXTROUS

FORWARD CONTROLS DESIGN LLC

(In Stock)

$66.50

0.0
AR15A4 RECEIVER EXTENSION

COLT

(In Stock)

$69.99

4.0 (1)
STAG 15 300 BLACKOUT 8IN UPPER RECEIVERS

STAG ARMS

(In Stock)

$499.99 - $549.99

0.0
AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION KIT

HOGUE

(In Stock)

$55.99

4.5 (8)
AR-15 DOUBLE TUNGSTEN H2 BUFFER

LUTH-AR LLC

(In Stock)

$41.99

0.0
AR-15 ULTRA-LIGHT EJECTION PORT COVER

V SEVEN WEAPON SYSTEMS

(In Stock)

$33.99

4.4 (5)
AR-15 TRIPLE TUNGSTEN H3 BUFFER

LUTH-AR LLC

(In Stock)

$52.99

0.0
STAG 15 5.56 M4 UPPER RECEIVERS

STAG ARMS

(In Stock)

$449.99 - $499.99

0.0
AR-15 INVESTMENT CAST ENHANCED LOWER PARTS KIT

BATTLE ARMS DEVELOPMENT INC.

(In Stock)

$33.99

0.0
AR-15 MAGAZINE RELEASE AMBIDEXTROUS EXTENDED

KE ARMS LLC

(In Stock)

$69.99

1.0 (1)
New
AR-15 BUFFER TUBE MIL-SPEC 6 POSITION

SONS OF LIBERTY GUN WORKS

(In Stock)

$39.99

0.0
AR-15 MIL-SPEC CARBINE BUFFER ASSEMBLY PACKAGE

LUTH-AR LLC

(In Stock)

$49.99

5.0 (3)
AR-15 RECEIVER SMALL PARTS KIT

WILSON COMBAT

(In Stock)

$49.95

0.0
AR-15 LOWER RECEIVER LITHIUM ALUMINUM

V SEVEN WEAPON SYSTEMS

(In Stock)

$359.00

2.0 (1)
AR-15 STAINLESS LOWER PARTS KITS .223/5.56

ARMASPEC

(In Stock)

$56.99

5.0 (1)
AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION REFILL KIT

HOGUE

(In Stock)

$38.99

0.0
New
AR-15 BUFFER H2

SONS OF LIBERTY GUN WORKS

(In Stock)

$42.99

0.0
AR-15 9MM BUFFER KIT

ANGSTADT ARMS, LLC

(In Stock)

$64.99

4.3 (3)
AR-15 LOWER PARTS KIT

CRITICAL CAPABILITIES LLC

(In Stock)

$35.99

2.6 (15)
AR-15 MK57 BANSHEE 100 UPPER RECEIVER 5.7X28MM

CMMG

(In Stock)

$749.95

0.0
AR-15 SLOPED QUICK DISCONNECT END PLATE

PHASE 5 TACTICAL

(In Stock)

$39.99

0.0
STAG 15 223 VARMINTER UPPER RECEIVERS

STAG ARMS

(In Stock)

$499.99 - $549.99

5.0 (1)
M4E1 ASSEMBLED UPPER RECEIVER .300 BLACKOUT BLACK

AERO PRECISION

(In Stock)

$444.99 - $509.99

0.0
M4E1-T ATLAS R-ONE COMPLETE UPPER RECEIVERS 10.5" 5.56MM

AERO PRECISION

(In Stock)

$434.99 - $464.99

5.0 (1)
AR-15/M16 LOW-MASS RECOIL BUFFER

J P ENTERPRISES

(In Stock)

$56.99

0.0
STAG 15 5.56 18IN 3GUN ELITE UPPER RECEIVERS

STAG ARMS

(In Stock)

$599.99 - $649.99

3.5 (2)