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5.56 Rifles for Sale Online

When customization, accuracy, and power are the top priorities, 5.56 guns have you covered. 5.56mm rifles were designed to use high velocity, powerful 5.56 millimeter rounds, which has made them a favorite among the U.S. military and NATO forces. For shooters who prefer .223 caliber rounds, many of the 5.56 rifles sold by DeGuns.net fire those as well. These 5.56/.223 rifles may not be quite as powerful as AK47s, but they are known for their extreme accuracy.

But the versatility doesn’t stop there. 556 guns can be configured into a one-of-a-kind firearm that’s outfitted to your exact needs and specifications. Choose one our 556 rifles and then have fun customizing it into your 556 rifle with a variety of:

5.56mm rifles are ideal in situations where having to reload could be a serious hindrance. That’s why it’s the semi-automatic of choice for gun enthusiasts who need a firearm for hunting, home defense, sport shooting and more.

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DPMS Panther Oracle 5.56 NATO/.223 Rem 16" AR-15 Semi-Auto Rifle - 60531 DPMS Panther Oracle 5.56 NATO/.223 Rem 16" AR-15 Semi-Auto Rifle - 60531
Our Price: $649.99
Sale Price: $499.99
Savings: $150.00
101 in stock!
Adams Arms Agency 5.56 NATO/.223 Rem 16" Free-Float Piston Driven AR-15 Style Rifle Adams Arms Agency 5.56 NATO/.223 Rem 16" Free-Float Piston Driven AR-15 Style Rifle
Our Price: $994.00
Sale Price: $669.99
Savings: $324.01
90 in stock!
Sig Sauer RM400 SRP 5.56 NATO/.223 Rem 16" Optics Ready Semi-Auto AR-15 Rifle Sig Sauer RM400 SRP 5.56 NATO/.223 Rem 16" Optics Ready Semi-Auto AR-15 Rifle
Our Price: $1,054.00
Deal of the Day Price: $769.99
Savings: $284.01
70 in stock!
Sig Sauer M400 Enhanced Carbine 5.56 NATO/.223 Rem 16" 30+1 AR-15 Rifle Sig Sauer M400 Enhanced Carbine 5.56 NATO/.223 Rem 16" 30+1 AR-15 Rifle
Our Price: $1,413.00
Deal of the Day Price: $1,199.99
Savings: $213.01
58 in stock!
Smith & Wesson, S&W Model M&P 15 Sport II Optic Ready w/ Magpul M-LOK Handguard 12024 022188872958 Smith & Wesson, S&W Model M&P 15 Sport II Optic Ready w/ Magpul M-LOK Handguard 12024
Our Price: $739.00
Sale Price: $629.99
Savings: $109.01
57 in stock!
Ruger AR-556 5.56 NATO/.223 Remington AR-15 Style Rifle 8500 736676085002 Ruger 08500 AR-556 5.56 NATO/.223 Remington AR-15 Style Rifle
Our Price: $649.99
Sale Price: $599.99
Savings: $50.00
20 in stock!
Adams Arms Agency Magpul FDE Edition 5.56 NATO/.223 Rem 16" Free-Float Piston Driven AR-15 Style Rifle Adams Arms Agency Magpul FDE Edition 5.56 NATO/.223 Rem 16" Free-Float Piston Driven AR-15 Style Rifle
Our Price: $1,399.99
Sale Price: $999.99
Savings: $400.00
17 in stock!
SIG M400 Combo 556 16" MOE R4B 30 Round with Romeo 4B Red Dot SIG M400 Combo 556 16" MOE R4B 30 Round with Romeo 4B Red Dot
Our Price: $1,499.00
Sale Price: $1,249.99
Savings: $249.01
10 in stock!
Kel-Tec KTRDBBLK RDB 5.56 NATO/.223 Rem 17" Semi-Auto Bullpup Rifle Black Kel-Tec KTRDBBLK RDB 5.56 NATO/.223 Rem 17" Semi-Auto Bullpup Rifle Black
Our Price: $1,274.00
Sale Price: $1,149.99
Savings: $124.01
10 in stock!
ATI Tactical Omni Hybrid Maxx w/ 13" Keymod Rail - 5.56/223 REM 16in - ATIGOMX556TS ATI Tactical Omni Hybrid Maxx w/ 13" Keymod Rail - 5.56/223 REM 16in - ATIGOMX556TS
Our Price: $499.99
Sale Price: $459.99
Savings: $40.00
10 in stock!
Adams Arms Agency Magpul Edition 5.56 AR-15 deguns Adams Arms Agency Magpul Edition 5.56 NATO/.223 Rem 16" Free-Float Piston Driven AR-15 Style Rifle
Our Price: $1,399.99
Sale Price: $999.99
Savings: $400.00
7 in stock!
Daniel Defense DDM4 V5 5.56x45mm NATO/.223 Rem AR-15 Style Rifle Daniel Defense DDM4 V5 5.56x45mm NATO/.223 Rem AR-15 Style Rifle
Our Price: $1,773.00
Sale Price: $1,685.00
Savings: $88.00
6 in stock!
Smith & Wesson M&P-15X 5.56mm Semi-Auto Rifle with Troy Short Quad and Battle Sights (LE Only) 311008 022188136050 Smith & Wesson M&P-15X 5.56mm Semi-Auto Rifle with Troy Short Quad and Battle Sights (LEO Only)
Our Price: $989.50
Sale Price: $899.99
Savings: $89.51
6 in stock!
CZ-USA CZ 805 Bren S1 .223 Rem/5.56 NATO Carbine Black 08520 806703085203 CZ-USA 08520 CZ 805 Bren S1 .223 Rem/5.56 NATO Carbine - Black
Our Price: $1,999.00
Sale Price: $1,699.99
Savings: $299.01
5 in stock!
Molot Veper Pioneer .223 Rem 21.6" 10+1 Semi-Auto AK Style Rifle VPRP-223-01 Molot Vepr Pioneer .223 Rem 21.6" 10+1 Semi-Auto AK Style Rifle
Our Price: $899.99
Sale Price: $739.99
Savings: $160.00
3 in stock!
POF USA Renegade Plus Gen4 Piston Operated AR-15 5.56 NATO/.223 Rem Rifle 16.5" Barrel Length POF USA 00856 Renegade Plus Gen4 Direct Impingement AR-15 5.56 NATO/.223 Rem Rifle 16.5" Barrel Length
Our Price: $1,899.99
Sale Price: $1,699.99
Savings: $200.00
3 in stock!
Mossberg MMR Tactical AR-15 5.56 NATO 13" Free Float Handguard 65081 Mossberg MMR Tactical AR-15 5.56 NATO 13" Free Float Handguard 65081
Our Price: $1,393.00
Sale Price: $929.99
Savings: $463.01
3 in stock!
Smith and Wesson Model M&P 15 Sport 5.56mm AR For Sale Smith & Wesson, S&W Model M&P 15 Sport 5.56mm 16" Barrel
Our Price: $739.00
Sale Price: $599.99
Savings: $139.01
2 in stock!
Sig Sauer Sig516 CQB 5.56 NATO/.223 Rem 10.5" Piston-Driven AR-15 Short Barreled Rifle Sig Sauer Sig516 CQB 5.56 NATO/.223 Rem 10.5" Piston-Driven AR-15 Short Barreled Rifle
Our Price: $1,799.00
Sale Price: $1,589.99
Savings: $209.01
2 in stock!
Daniel Defense DDM4V7 5.56 NATO/.223 Rem 30+1 16" 30+1 Rifle 02-128-02081-047 815604018456 02-128-02081-047 Daniel Defense DDM4V7 5.56 NATO/.223 Rem 30+1 16" 30+1 Rifle
Our Price: $1,679.00
Sale Price: $1,595.99
Savings: $83.01
2 in stock!
CMMG AR-15 MK4 3 Gun Rifle 5.56MM 18" Stainless Barrel 55A6654 815835015583 CMMG AR-15 MK4 3 Gun Rifle 5.56MM 18" Stainless Barrel
Our Price: $1,399.95
Sale Price: $1,194.99
Savings: $204.96
2 in stock!
FN FN-15 FN36320 MILITARY COLLECTOR M16 5.56MM MILITARY COLLECTOR M16 223 Rem | 5.56 NATO FN36320 845737005061 FN FN-15 FN36320 MILITARY COLLECTOR M16 5.56MM MILITARY COLLECTOR M16 223 Rem | 5.56 NATO
Our Price: $1,749.00
Sale Price: $1,599.99
Savings: $149.01
2 in stock!
LA-N15/LA-R15 â„¢ RAVENâ„¢ 14.5'' Intermediate Rifle .223 Wylde LA-N15 784672911023 LA-N15/LA-R15 RAVEN 14.5'' Intermediate Rifle .223 Wylde
Our Price: $2,995.00
Sale Price: $2,694.99
Savings: $300.01
2 in stock!
RCBS RC SUPREME PRESS RCBS RC SUPREME PRESS
Our Price: $214.45
Sale Price: $199.99
Savings: $14.46
2 in stock!
Ruger SR-556 Takedown Ruger 5924 SR-556 Takedown AR-15 Rifle 5.56mm 16in 30rd Black Keymod Rail 5924
Our Price: $2,199.00
Sale Price: $1,629.99
Savings: $569.01
2 in stock!
   
 

556 Rifles In Stock and Ready to Ship

When you order an item online, you expect it to ship quick. But what if it’s not in stock? This is a common problem for gun owners today. While other suppliers struggle to meet the demands of customers, DeGuns is proud to say that our inventory of 5.56 rifles is well stocked and ready to ship.

We’ll get your order and payment processed fast so your 5.56mm rifle gets shipped out quick - right to your door. If you’re interested in customizing your new gun, take a look at the accessories section for affordable add-ons that are also guaranteed to be in stock.