BudsGunShop.com - Caliber

Hi Aubrey, Yes the 5.56 NATO chamber (accepts .223 Remington too)

Yes the 5.56 NATO chamber (accepts .223 Remington too) Specifications and Features: Colt LE6920 Semi Auto Rifle-- >>>>>>> 5.56 NATO chamber (accepts .223 Remington) -- 16" chrome-lined, M4 barrel -- 1:7" RH twist, 6 lands and grooves -- Gas operated, multi lug rotary locking bolt -- 30 Round Magazine -- Forged flat top upper receiver -- Magpul MBUS rear sight -- Anodized aluminum upper/lower receivers -- Standard M4 front sight base -- Two piece, black plastic handguards with dual heat shields -- Black 4 position buttstock -- Length: 32 to 35.5" -- Weight: 6.29 lbs -- Black

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Hi Aubrey, Yes the 5.56 NATO chamber (accepts .223 Remington too) Specifications and Features:
Colt LE6920 Semi Auto Rifle--
>>>>>>> 5.56 NATO chamber (accepts .223 Remington) --
16" chrome-lined, M4 barrel --
1:7" RH twist, 6 lands and grooves --
Gas operated, multi lug rotary locking bolt --
30 Round Magazine --
Forged flat top upper receiver --
Magpul MBUS rear sight --
Anodized aluminum upper/lower receivers --
Standard M4 front sight base --
Two piece, black plastic handguards with dual heat shields --
Black 4 position buttstock --
Length: 32 to 35.5" --
Weight: 6.29 lbs --
Black

Absolutely Aubrey. The Barrel is actually stamped 5.45NATO so it will fire both 5.56 & 223 without issue.