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yup all colt barrels are chambered for 556 (except for the one with 24'' SS barrel if I'm not mistaken)
*** Damn Proud to Be an American Ally ! ***
The Armory:
Colt 6601 - Colt 6731 - Colt 613 - Steyr StG.58 - M1 Carbine - Galil SAR - CZ Scorpion EVO - Franchi PA8 - Glock 17 - Pietta/Colt SAA 1873 - SA 1911A1 Mil Spec - Ruger LCP
I know that some MT have the barrel stamped "5,56" and the lower roll marked "5,56". The barrel of my new M4 is stamped "C /MP 1/7", not "5,56". Otherwise if you take a look on the Colt catologue You can see that all the MT are "223 caliber", and "they can shoot 5,56". Consequently my M4 should be 223.
But the question remains the same: 223 and 5,56 chambers are really different? Furthermore, If 223 and 5,56 are different, why some Colt carbines have different calibers stamped on diffent parts of the gun?![]()
No, the question doesn't remain. Only your refusal to look at the answer.
https://www.m4carbine.net/showpost.p...48&postcount=1
Colt SP6920, LE6920, 6720
BCM Lower/ARP 6.8SPC upper for hog hunting
DD M4V5 clone, Troy 5.56 Carbine, S&W M&P10
PSA Lower/BCM LW 16" middie CHF upper
PSA Lower/BCM LW 14.5" middie upper
2 PSA 18"6.8 rifles, PSA 20" M16A4 clone
Remington 870, Remington 700VTR
SA XDm9, XDm9C, , XD9SC S&W 1911
Ruger GP100, Hawkeye77 Compact 6.8SPC
Kel-Tec KSG, Marlin 336 30-30, HK 45C, VP9
Sig 1911 Tacops, Scorpion 1911, M11A1, P226 Mk25
Did someone just necro-post in a thread that is over 2 years old?
Cameron
Last edited by Cameron; 11-01-10 at 15:49.
Colt SP6920, LE6920, 6720
BCM Lower/ARP 6.8SPC upper for hog hunting
DD M4V5 clone, Troy 5.56 Carbine, S&W M&P10
PSA Lower/BCM LW 16" middie CHF upper
PSA Lower/BCM LW 14.5" middie upper
2 PSA 18"6.8 rifles, PSA 20" M16A4 clone
Remington 870, Remington 700VTR
SA XDm9, XDm9C, , XD9SC S&W 1911
Ruger GP100, Hawkeye77 Compact 6.8SPC
Kel-Tec KSG, Marlin 336 30-30, HK 45C, VP9
Sig 1911 Tacops, Scorpion 1911, M11A1, P226 Mk25
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