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Shop 157 Deals on 5.56×45mm NATO Parts Kits

Browse 5.56×45mm NATO Parts Kits for sale at the lowest prices online.

Lower Parts Kits

Upper Receivers

Bolt Carrier Groups

Lower Receivers

Rosco Manufacturing K9 Sauce Pack Barrel and Bolt Carrier Group Kit 5.56x45mm, Black - Rosco Manufacturing

Rosco Manufacturing K9 Sauce Pack Barrel and Bolt Carrier Group Kit 5.56x45mm, Black

$369.99 $153.00

Rosco Manufacturing

Anderson Manufacturing Lower Parts Kit for AR-15 223/5.56 Rifle, Black - G2-K421-A000-0P - Anderson Manufacturing

Anderson Manufacturing Lower Parts Kit for AR-15 223/5.56 Rifle, Black - G2-K421-A000-0P

Anderson Manufacturing

BCMGunfighter Enhanced AR-15 Lower Parts Kit, FDE - ELPKFDE - Bcm

BCMGunfighter Enhanced AR-15 Lower Parts Kit, FDE - ELPKFDE

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

BCMGunfighter Enhanced AR-15 Lower Parts Kit, Black - ELPKBLK - Bcm

BCMGunfighter Enhanced AR-15 Lower Parts Kit, Black - ELPKBLK

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Tacfire Lower Parts Kit w/ A2 Grip, Black - LPK01-USA - Tacfire

Tacfire Lower Parts Kit w/ A2 Grip, Black - LPK01-USA

AR-15 Radian Weapons Builder Kit in Striking Radian Black Finish - Customizable Excellence - R0435 - Radian Weapons

AR-15 Radian Weapons Builder Kit in Striking Radian Black Finish - Customizable Excellence - R0435

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Tacfire Build Kit for AR-15 5.56 NATO/223 Remington Unassembled Rifle, Nitride Black - SSRK556LPK - Tacfire

Tacfire Build Kit for AR-15 5.56 NATO/223 Remington Unassembled Rifle, Nitride Black - SSRK556LPK

$489.99 $292.99

Complete AR-15 Build Kit - Aim Sports Kit in Sleek Black Finish - AR5CUB5 - Aim Sports Inc

Complete AR-15 Build Kit - Aim Sports Kit in Sleek Black Finish - AR5CUB5

$599.99 $369.49

Bushmaster Lower Receiver Parts Kit, Black - 93384 - Bushmaster

Bushmaster Lower Receiver Parts Kit, Black - 93384

Tacfire Complete Pistol Build Kit for Semi-Auto Pistols, Black - SS-PK556-LPK - Tacfire

Tacfire Complete Pistol Build Kit for Semi-Auto Pistols, Black - SS-PK556-LPK

$451.99 $285.99

AR-15 Radian Weapons Builder Kit in Striking Radian Black Finish - Customizable Excellence - R0427 - Radian Weapons

AR-15 Radian Weapons Builder Kit in Striking Radian Black Finish - Customizable Excellence - R0427

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Spike's Tactical Enhanced Lower Receiver Parts Kit 223/556, FDE - SLPK302 - Spikes Tactical

Spike's Tactical Enhanced Lower Receiver Parts Kit 223/556, FDE - SLPK302

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Spikes Tactical

Black Rain Ordnance Lower Parts Kit - BRO-LPK-BLK - Black Rain Ordnance

Black Rain Ordnance Lower Parts Kit - BRO-LPK-BLK

$319.99 $218.00

Black Rain Ordnance

Complete AR-15 Pistol Build - Aim Sports Kit in Sleek Black Finish - AR5CUB9 - Aim Sports Inc

Complete AR-15 Pistol Build - Aim Sports Kit in Sleek Black Finish - AR5CUB9

$599.99 $449.99

LMT Defense 5.56x45mm Lower Parts Kit w/Trigger Group, Black - Lmt Defense

LMT Defense 5.56x45mm Lower Parts Kit w/Trigger Group, Black

$348.00 $258.16

Tacfire Build Kit for AR-15 300 AAC Blackout Complete Pistol, Parkerized Black - SSPK300LPK7 - Tacfire

Tacfire Build Kit for AR-15 300 AAC Blackout Complete Pistol, Parkerized Black - SSPK300LPK7

$357.99 $283.26

Desert Tech MDRX Conversion Kit, forward Eject, 5.56 NATO, 16" Threaded Barrel, 30rd, 1 Magazine - Desert Tech

Desert Tech MDRX Conversion Kit, forward Eject, 5.56 NATO, 16" Threaded Barrel, 30rd, 1 Magazine

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

LMT Defense 5.56x45mm No Trigger Group Lower Parts Kit, Black - Lmt Defense

LMT Defense 5.56x45mm No Trigger Group Lower Parts Kit, Black

$125.10 $118.99

PSA AR15 Upper Build Kit - 28084 - Palmetto State Armory

PSA AR15 Upper Build Kit - 28084

Palmetto State Armory

Palmetto State Armory Magpul ACS-L Lower Build Kit - Flat Dark Earth - Palmetto State Armory

Palmetto State Armory Magpul ACS-L Lower Build Kit - Flat Dark Earth

$499.36 $169.99

Palmetto State Armory

PSA Magpul MOE Lower Build Kit - Flat Dark Earth - Palmetto State Armory

PSA Magpul MOE Lower Build Kit - Flat Dark Earth

Palmetto State Armory

DPMS AR-15 MOE PPT Lower Build Kit - Dpms

DPMS AR-15 MOE PPT Lower Build Kit

Palmetto State Armory Lower Parts starter Kit-Black - Palmetto State Armory

Palmetto State Armory Lower Parts starter Kit-Black

Palmetto State Armory

PSA MOE Lower Parts Kit, Black - Palmetto State Armory

PSA MOE Lower Parts Kit, Black

Palmetto State Armory

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