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1/25/2018 7:38:29 AM
Posted: 1/19/2006 4:02:53 AM EST
What's the function of the barrel 'detailing' on the M4 rifle? I'm talking about the fact that the barrel is not smooth along it's length, but instead have 'thinner' areas. Does this have to do with barrel cooling/strength?




Link Posted: 1/19/2006 4:09:31 AM EST
[Last Edit: 1/19/2006 4:15:34 AM EST by limey1]
Johan,
the 'detailing' (also known as 'grenade cuts') is for mounting an M203 grenade launcher under the barrel. I'll have a look and see if I can find a pic.

rgds,
SteveA

ETA : found it!
Link Posted: 1/19/2006 4:14:15 AM EST
Link Posted: 1/19/2006 4:20:03 AM EST

Originally Posted By limey1:
Johan,
the 'detailing' (also known as 'grenade cuts') is for mounting an M203 grenade launcher under the barrel. I'll have a look and see if I can find a pic.

rgds,
SteveA

ETA : found it!
img.photobucket.com/albums/v358/limey1/m203grenade.gif




Excellent, thanks. Now I know!

I'm allowed to apply for my FAC in May, and I'm already looking forward to spend some of my hard-earned cash on some rifles. Always loved the EBR's so it may just be my first choice...
Link Posted: 1/19/2006 8:57:34 AM EST
hmm do they do a 12" barrel mounted pistol caliber one?? hmmm

a 9mm / .45acp M230
Link Posted: 1/19/2006 11:05:01 AM EST
Do you know why they decided on a 14.5" barrel instead of a 16" one??

Because on a 16" barrel, the bayonet doesn't fit
Link Posted: 1/19/2006 11:54:10 AM EST

Originally Posted By streetfighter:
Do you know why they decided on a 14.5" barrel instead of a 16" one??

Because on a 16" barrel, the bayonet doesn't fit



brilliant
Link Posted: 1/19/2006 12:33:21 PM EST
The barrel is also thinner under the handguards of an M4 barrel to save weight.

Mike


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