5.56x45mm NATO Rifles

Cross Machine Tool UPUR-4 Billet AR-15 Upper Receiver - Slick Side

NBS 16 5.56 HBAR Fluted Stainless Midlength M-LOK Upper Assembly

NBS 16" Billet Slick Side 5.56 Parkerized Mid-Length 1:7 M-LOK Complete Upper

NBS 16 5.56 Gov / SOCOM 1:8 Carbine M-LOK Upper Assembly

NBS 7.5" 5.56 DRP Pistol Quad Rail Complete Upper

NBS 14.5" (16" Overall) Mid-Length 5.56 NATO 1:7 Complete Upper w/ FSB and Pinned/Welded VG6 Precision Epsilon Muzzle Brake

NBS 16" Carbine 5.56 NATO 1:7 Complete Upper

Anderson Featureless 5.56 M-LOK AR-15 Rifle

Anderson Compmag 5.56 M-LOK AR-15 Rifle

13.7" 5.56 NATO 1:7 Twist Black Nitride Mid-Length Barrel

5.56 NATO 16" Parkerized Heavy Barrel 1:7 Twist Carbine Length Gas Syste

16" 5.56 Parkerized 1:7 Carbine Length Barrel

7.5" 5.56 NATO 1:7 Stainless Steel Pistol Length Barrel

Smith & Wesson M&P-15 Sport II 5.56

Zenith ZF56000016 ZF-56 5.56x45 16\" Barrel 30rd Semi-Auto Rifle - Includes Three Magazines

Xtreme Machine XM 15 Pistol 5.56 Nato

Wise Arms WA-15B 7.5-556-SBA3-MNB Semi-Auto Pistol, 5.56 NATO/.223 Rem, 7.5\" Barrel, 30+1, Billet Receiver, Midnight Bronze Cerakote, SBA3 Brace

Wise Arms WA-15B 5.56 NATO Semi-Auto Rifle 16\" White Threaded Barrel

Windham Weaponry MPC-RF 5.56mm NATO 16in Black w/ Black A2 Grips Semi Automatic Modern Sporting Rifle - 30+1 Rounds

Windham Superlite SRC .223/5.56 NATO Semi-Automatic Rifle

Windham WW-15 A4 5.56mm Semi-Automatic Rifle

Windham CDI 5.56mm Semi-Automatic AR-15 with 15-Inch M-LOK Handguard

Windham SRC 5.56mm M4A4 Flat-Top Rifle with Sig Sauer Romeo 5 Red Dot

Windham WW-15 SRC 5.56mm M4A4 Flat-Top Rifle with Desert Digital Camo