5.56 NATO (.223) Firearms for Sale

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

Current listings

MCR DUAL-FEED UPPER PICATINNY 12.5IN DRY FILM

$6,499.99 Sold by GunPro.com

FIGHT LIGHT INDUSTRIES MCR DUAL FEED MAGAZINE OR BELT-FED UPPER RECEIVER FULL AUTO RATED.

$5,999.99 Sold by GunPro.com

MCR DUAL-FEED RIFLE MLOK

$7,999.99 Sold by GunPro.com

MCR DUAL-FEED UPPER PICATINNY DRY FILM

$6,499.99 Sold by GunPro.com

M16 5.56 BOLT CARRIER GROUP NICKLE BORON

$179.99 Sold by GunPro.com

5.56X45MM NATO 7-HOLE CARTRIDGE CHECKER

$35.97 Sold by GunPro.com

BRN-4 14.5'' BARREL HEAVY PROFILE 1-7 1/2-28''

$268.97 Sold by GunPro.com

VOLUNTEER XV OPTIC READY 5.56 16'' 30+1

$894.97 Sold by GunPro.com

AR-556~ MPR 5.56 18'' 30+1

$843.97 Sold by GunPro.com

AR-15 5.56 BCG W/C158 BOLT CHROME LINED PHOSPHATE

$146.97 Sold by GunPro.com

M400 SNAKEBITE SE 5.56 30+1 CERAKOTE

$1,231.97 Sold by GunPro.com

M249 SAW

$16,000.00 Sold by Midwest Tactical

BRN-4 13.7'' BARREL MEDIUM CHROME LINED/PHOSPHATE 5.56X45

$289.97 Sold by GunPro.com

PAP M90 5.56X45 18.25'' BBL (1) 30RD MAG WALNUT

$1,138.99 Sold by GunPro.com

AR-15 M4E1-T 11.5 IN ATLAS S-ONE COMPLETE UPPER 5.56MM BLAC

$454.99 Sold by GunPro.com

Barnes Bullets 31190 VOR-TX Rifle 5.56x45mm NATO 62 gr TSX Boat Tail 20 Bx/ 10 Cs

$35.85 Sold by CME Firearms

AR-15 16'' LO-DRAG BULL UPPER RECEIVER 2PC HG 1-7

$389.97 Sold by GunPro.com

5.56 LIGHTWEIGHT BOLT CARRIER COMPLETE CHAMELEON PVD

$310.97 Sold by GunPro.com

STAG 15L LEFT HAND TACTICAL 7.5'' NITRIDE UPPER

$544.97 Sold by GunPro.com

M16 BOLT CARRIER GROUP 5.56 CHAMELEON PVD

$208.97 Sold by GunPro.com

SAINT VICTOR 5056X45 NATO 16'' BBL (1)30 ROUND MAG GRAY

$1,017.97 Sold by GunPro.com

SAINT VICTOR 5056X45 NATO 16'' BBL (1)30 ROUND MAG ODG

$1,017.97 Sold by GunPro.com

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

$509.99 Sold by GunPro.com

16'' CHF GOVERNMENT CARBINE, 5.56X45MM 1:7 RH TWIST

$379.97 Sold by GunPro.com