Archived Posts » 60,595,333
"Special A2 profile barrel"
2/18/2012 6:51:35 AM
I got this upper recently:
http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers/palmetto-state-armory-16-mid-length-mp-upper.html
There isn't a picture without handguards, so I assumed it would have a typical gov't profile barrel, like the HF one:
http://palmettostatearmory.com/index.php/ar-15-05/upper-parts/barrels/16-hammer-forged-chrome-lined-mid-length-barrel.html
It has the typical taper at the back of the barrel from full profile (just forward of the chamber area) to lightweight, under the handguards:
But then at the front there's a drastic "step" rather than the typical taper, right behind the FSB.
Barrel markings:
Is this just how these barrels are profiled, on purpose? I've never seen a barrel profile where the turning tool just stops at a 90 degree step like this.
(I can take better pics if you want, I was out in the garage swapping some parts around and didn't have my regular camera with me.)
http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers/palmetto-state-armory-16-mid-length-mp-upper.html
There isn't a picture without handguards, so I assumed it would have a typical gov't profile barrel, like the HF one:
http://palmettostatearmory.com/index.php/ar-15-05/upper-parts/barrels/16-hammer-forged-chrome-lined-mid-length-barrel.html
It has the typical taper at the back of the barrel from full profile (just forward of the chamber area) to lightweight, under the handguards:
But then at the front there's a drastic "step" rather than the typical taper, right behind the FSB.
Barrel markings:
Is this just how these barrels are profiled, on purpose? I've never seen a barrel profile where the turning tool just stops at a 90 degree step like this.
(I can take better pics if you want, I was out in the garage swapping some parts around and didn't have my regular camera with me.)
2/18/2012 11:24:43 AM
That step is just to hold the handguard cap in place, and is completely normal with these uppers.
My 16" middy is the same way
My 16" middy is the same way
2/18/2012 1:49:37 PM
Yes, that is normal for that barrel. It differs slightly from the "government" profile in details, but weighs about the same.
2/19/2012 11:55:16 AM
Originally Posted By PalmettoStateArmory:
Yes, that is normal for that barrel...
Yes, that is normal for that barrel...
That's good news, it's an odd profile but I just wanted to make sure it's normal before painting it all up or anything.
I took it out this morning to test fire it, the upper ran perfectly with any ammo I fed it. I've got it on a Palmetto lower with FDE furniture, it's a good solid rifle and I'm considering it 100% reliable so far. I didn't shoot for groups but I was able to keep a soda can dancing at 25-50 yards. I'm happy.
