5.56 NATO (.223) Firearms for Sale

Browse current firearms chambered in 5.56 NATO (.223), with listings from GunSpot sellers.

Current listings

SCHMEISSER GEN 2 WINDOW MAGAZINE 60RD BLACK POLYMER 5.56MM

$79.97 Sold by GunPro.com

LE6960-CCU UPPER RECEIVER 5.56 M-LOK BLACK

$641.97 Sold by GunPro.com

AR-15 14.7IN 5.56 SOCOM BARREL GROUP 1-7 CARBINE GAS

$285.97 Sold by GunPro.com

M16 BOLT CARRIER ASSY 5.56 NATO POLISHED BLK NITRIDE

$184.97 Sold by GunPro.com

18'' UPPER, RIFLE LENGTH BBL, ATLAS R-ONE 15'' M-LOK HG

$509.99 Sold by GunPro.com

Springfield Armory SA920556BA2 SA-16 5.56x45mm 30+1 20" Black Steel Barrel

$1,079.99 Sold by LSS GUNS

M400 SNAKEBITE SE 5.56 30+1 CERAKOTE

$1,231.97 Sold by GunPro.com

ZEROED 5.56MM SV 2.0 MUZZLE BRAKE 1/2X28

$113.97 Sold by GunPro.com

SCO15 UPPER RECEIVER

$219.00 Sold by GunPro.com

M4 LE6940 UPPER GROUP 16IN WITH BCG AND SIGHTS

$1,012.97 Sold by GunPro.com

AR-15 WORKHORSE 16 UPPER M-LOK 1-7 TWIST 5.56 NATO

$535.97 Sold by GunPro.com

AR-15 WORKHORSE 10.5 UPPER M-LOK 1-7 TWIST 5.56 NATO

$535.97 Sold by GunPro.com

AR-15 10.5'' CARBINE UPPER RECEIVER 1-7 M-LOK BLK 5.56MM

$581.97 Sold by GunPro.com

STAG 15 M4 PHOSPHATE UPPER

$492.97 Sold by GunPro.com

5.56 LIGHTWEIGHT BOLT CARRIER COMPLETE TITANIUM NITRIDE

$310.97 Sold by GunPro.com

L5AWM 10RD TRANSLUCENT SMOKE

$30.97 Sold by GunPro.com

AR-15 A2 BIRDCAGE FLASH HIDER 5.56 NATO

$10.97 Sold by GunPro.com

Colt M16 Transferable Machine Gun

$38,995.00 Sold by Midwest Tactical

AR-15 BILLET UPPER RECEIVER W/O FORWARD ASSIST PROVISIONS

$205.97 Sold by GunPro.com

AR-15 11.5'' A1 CARBINE BARREL 1-12 ASSEMBLY

$220.97 Sold by GunPro.com

M4 MIDLENGTH CARBINE 5.56MM NATO/223 REMINGTON BLACK RIFLE

$1,145.97 Sold by GunPro.com

Fn15 Patrol Carbine SBR

$1,500.00 Sold by Midwest Tactical

FN 15 DMR3 5.56X45MM 18'' BBL (1) 30 ROUND MAG TUNGSTEN GRAY

$2,209.00 Sold by GunPro.com

FN 15 DMR3 5.56X45MM 18'' BBL (1) 30 ROUND MAG BLACK ANODIZED

$2,039.00 Sold by GunPro.com