5.56 NATO (.223) Firearms for Sale

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

Current listings

AR-15 M4E1-T 14.5'' MID-LENGTH COMPLETE UPPER 12'' R-ONE HG

$484.99 Sold by GunPro.com

.223 Rem/5.56 NATO 55gr 50ct

$26.00 Sold by Bullseye-Cartridge

AR15, 8.5" Pistol, 5.56 NATO Rear Charge, Complete with BCG.

$525.00 Sold by Hired_Gun

AR-15 12.7'' A1 CARBINE BARREL 1-12 TWIST ASSEMBLY

$221.97 Sold by GunPro.com

SAKER ASR 556 5.56 NATO 134DB SUPPRESSOR BLACK

$765.00 Sold by GunPro.com

M16 BOLT CARRIER ASSY 5.56 NATO MAG PHOSPHATE BLACK

$184.97 Sold by GunPro.com

Griffin mark 2 SBR

$2,600.00 Sold by Midwest Tactical

AR-15 16 SUPER DUTY NANO COMPLETE UPPER RECEIVER DDC

$1,353.97 Sold by GunPro.com

AR-15 16 SUPER DUTY NANO COMPLETE UPPER RECEIVER BLACK

$1,207.97 Sold by GunPro.com

AR-15 ROLLER FOLLOWER MAGAZINE 5-RD POLYMER BLACK 5.56MM

$18.97 Sold by GunPro.com

HELLION BULLPUP 5.56X45 NATO 18'' BBL (1)30RD MAG BLACK

$1,731.97 Sold by GunPro.com

G4 SIDE CHARGING UPPER RECEIVER

$264.97 Sold by GunPro.com

BRN-15 16'' UPPER RECEIVER ASSY .750'' W/ CH & BCG

$462.97 Sold by GunPro.com

BRN-15 16'' UPPER RECEIVER ASSY .625'' W/ CH & BCG

$462.97 Sold by GunPro.com

BRN-15 13.7'' UPPER RECEIVER ASSY .750'' W/CH & BCG

$462.97 Sold by GunPro.com

BRN-15 11.5'' UPPER RECEIVER ASSY .750'' W/ CH & BCG

$462.97 Sold by GunPro.com

Rossi LWC Black 5.56 Nato 16.5in LWC0556-BK

$299.99 Sold by LSS GUNS

5.56 NATO MAGPUL, FLAT DARK EARTH

$13.97 Sold by GunPro.com

L5AWM 20RD TRANSLUCENT CLEAR

$30.97 Sold by GunPro.com

AR-15 14.7IN 5.56 M4 BARREL GROUP 1-7 CARBINE GAS

$285.97 Sold by GunPro.com

16'' UPPER, MID-LEN BARREL, 15'' M-LOK ATLAS S-ONE HG -BLK

$499.99 Sold by GunPro.com

Olympic Arms/SGW 4 Position M16 Transferable Machine Gun

$26,000.00 Sold by Midwest Tactical

STAG 15 TACTICAL NITRIDE UPPER

$544.97 Sold by GunPro.com

Ruger AC556 Transferable Machine Gun

$17,995.00 Sold by Midwest Tactical