Home /Categories / Firearms / 5.56×45mm NATO

Shop 2,090 Deals on 5.56×45mm NATO Firearms

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

Lower Receivers

Upper Receivers

American Defense Mfg UIC Mod 1 5.56x45mm 16", Black - American Defense Mfg

American Defense Mfg UIC Mod 1 5.56x45mm 16", Black

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

American Defense Mfg

LWRC .223 Remington AR Rifle with 16.1" Barrel, Burnt Bronze - ICDIR5BB16COM - Lwrc

LWRC .223 Remington AR Rifle with 16.1" Barrel, Burnt Bronze - ICDIR5BB16COM

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

Bootleg Lower 5.56x45mm AR Lower, Black - BPLR1 - BPLR1 - Bootleg

Bootleg Lower 5.56x45mm AR Lower, Black - BPLR1 - BPLR1

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

FN M249S 18.5" 30rd 5.56 Nato Rifle, Flat Dark Earth - 46-100170 - Fnh

FN M249S 18.5" 30rd 5.56 Nato Rifle, Flat Dark Earth - 46-100170

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

FN M249S Para 16.1" 30rd 5.56 Nato Rife, Flat Dark Earth - 46-100172 - Fnh

FN M249S Para 16.1" 30rd 5.56 Nato Rife, Flat Dark Earth - 46-100172

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

Daniel Defense M4A1 MIL SPEC+ Rifle, Cerakote Brown - 02-088-15126-011 - Daniel Defense

Daniel Defense M4A1 MIL SPEC+ Rifle, Cerakote Brown - 02-088-15126-011

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

IWI Tavor X95 5.56 Semi-Automatic Gas Piston Action Rifle, Black - XB18 - Iwi

IWI Tavor X95 5.56 Semi-Automatic Gas Piston Action Rifle, Black - XB18

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

LWRC International IC DI Standard CA Compliant 5.56 Semi-Automatic AR-15 Rifle - ICDIR5B16CAC - Lwrc

LWRC International IC DI Standard CA Compliant 5.56 Semi-Automatic AR-15 Rifle - ICDIR5B16CAC

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

Advanced Armament Ranger 5 Mini 5.56mm Direct Thread Rifle Suppressor, Black - Advanced Armament

Advanced Armament Ranger 5 Mini 5.56mm Direct Thread Rifle Suppressor, Black

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

Advanced Armament

Bravo Company Mfg RECCE-16 MCMR 5.56 AR-15 Carbine - 750-750 - Bcm

Bravo Company Mfg RECCE-16 MCMR 5.56 AR-15 Carbine - 750-750

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

Faxon Firearms Ascent 5.56x45mm 16" AR Rifle, Black - FX5116 - Faxon Firearms

Faxon Firearms Ascent 5.56x45mm 16" AR Rifle, Black - FX5116

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

Radical SOCOM 16" 5.56 Nato 30rd Rifle, Black / Gray - RF01673 - Radical Firearms

Radical SOCOM 16" 5.56 Nato 30rd Rifle, Black / Gray - RF01673

$699.99 $384.61

Radical Firearms

Ruger Mini-14 Ranch Brown / Black 5.56 / .223 Rem 18.5 Barrel 5-Rounds - Ruger

Ruger Mini-14 Ranch Brown / Black 5.56 / .223 Rem 18.5 Barrel 5-Rounds

$1,429.00 $940.99

Noveske Gen 4 .223 Remington AR Rifle with 16" Barrel, Black - 2000563 - Noveske

Noveske Gen 4 .223 Remington AR Rifle with 16" Barrel, Black - 2000563

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

Black Rain Ordnance .223 Remington AR Rifle with 16" Barrel, Black, White - BROSPECMOEBWBTL - Black Rain Ordnance

Black Rain Ordnance .223 Remington AR Rifle with 16" Barrel, Black, White - BROSPECMOEBWBTL

$1,433.99 $1,020.99

Black Rain Ordnance

SanTan Tactical STT-15 Receiver Set - Santan Tactical

SanTan Tactical STT-15 Receiver Set

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

Santan Tactical

Bootleg Lower 5.56x45mm AR Lower, Black - BPLR1 - Bootleg

Bootleg Lower 5.56x45mm AR Lower, Black - BPLR1

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

Odin Works OTR-15 .223 Remington AR Lower, Black - OW15ForgedLowerBLK - Odin Works

Odin Works OTR-15 .223 Remington AR Lower, Black - OW15ForgedLowerBLK

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

Springfield Hellion 5.56x45 Bullpup Rifle, Black - HL916556B - Springfield Armory

Springfield Hellion 5.56x45 Bullpup Rifle, Black - HL916556B

$2,394.29 $1,546.00

Springfield Armory

IWI Tavor X95 16" 5.56 Nato Rifle, Black -XB16 - Iwi

IWI Tavor X95 16" 5.56 Nato Rifle, Black -XB16

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

FN SCAR 16S NRCH 5.56x45 Rifle, Black - 98521-2 - Fnh

FN SCAR 16S NRCH 5.56x45 Rifle, Black - 98521-2

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

FN SCAR 16S NRCH 10rd 5.56x45mm Rifle - 98621-2 - Fnh

FN SCAR 16S NRCH 10rd 5.56x45mm Rifle - 98621-2

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

Ruger Mini 14 Ranch .223 Remington Rifle, Black Synthetic - 5817 - Ruger

Ruger Mini 14 Ranch .223 Remington Rifle, Black Synthetic - 5817

$1,449.00 $949.00

FN FN15 TAC3 .223 Remington AR Rifle with 16" Barrel, Black - 36100632 - Fnh

FN FN15 TAC3 .223 Remington AR Rifle with 16" Barrel, Black - 36100632

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

10 / 88