Lightweight Barrel? (specifically Daniel defense)

[WS6]

I'm thinking about getting a lightweight Daniel Defense. I will primarily use it suppressed with a Surefire mini socom. Is the lightweight profile going to handle the weight well or will it heat up and cause poi shifts worse that a .gov profile? Also if anyone has a picture of a ddm4 LW barrel with any Surefire muzzle device I'm curious how it mates up to the thinner barrel.

Any other thoughts pro or con?

[Lawnchair 04]

Attachment 22747Attachment 22748Attachment 22749Here's soom pictures for you. First is a bcm standard profile with a surefire socom flash hider and the last two are a dd lightweight 14.5 with socom brake. As far as poi shift I can't tell you.

[WS6]

Attachment 22747Attachment 22748Attachment 22749Here's soom pictures for you. First is a bcm standard profile with a surefire socom flash hider and the last two are a dd lightweight 14.5 with socom brake. As far as poi shift I can't tell you.

How much interface is that? Is the spacer and shims solidly sandwiched or too much overhang or not enough material on the barrel shoulder? Is this a concern?

[Lawnchair 04]

The shims overhang the barrel shoulder slightly but not enough for concern. They're solid I'm not worried about it. I'm on month eight of my suppressor wait hopefully ill be able to answer your other questions soon.

[WS6]

How thick is the LW barrel on the chamber side of the block? How does it compare with the .gov profile at that point? What diameter gas block is used? Specifically I want to know about daniel defense LW profile.

[Lawnchair 04]

From my understanding (and I'm sure you can search this further) is the only difference in the lightweight profile is forward of the gas block. Meaning the government profile and lightweight are the same until the gas block. Then the government steps up the thickness. My dd lightweight barrel uses a .625 gas block( govt should be a .750). Haven't had a chance to shoot it yet either (waiting on a rail) otherwise I could be of more help.

[tylerw02]

The shims overhang the barrel shoulder slightly but not enough for concern. They're solid I'm not worried about it. I'm on month eight of my suppressor wait hopefully ill be able to answer your other questions soon.

When your suppressor stamp comes back, please do follow up. I'm waiting on a Surefire SOCOM 556RC, currently. I have a 14.5" DD CHF mid-length that currently wears a BCE 1.5. If it doesn't get a crazy POI shift with the suppressor, I will change out the muzzle device in favor of a Surefire so that I can mount the suppressor should I choose to. If it gets crazy shifts, I won't waste my time and money switching it out. Thanks!

[MidwayHazard59er]

The only reason we went to anything heavier than a Pencil Barrel is because your average Grunt will use his rifle for all kinds of stuff he isn't supposed to. The barrel becomes a wedge, a seat, even a shovel at times. For everyone else a light weight barrel is optimal unless you're one of those guys obsessed with punching perfect holes in paper. Most of you have 16in. rifles. It's a 250 meter platform pragmatically and a pencil barrel is just fine and dandy for that. If you can get all your shots into a head sized target, then what else matters?

[MJN99999]

I use a DD 14.5" LW with an AAC M4-2000, occasionally a 762-SDN-6, and a 2-MOA Aimpoint. With those cans and sight I have to try very hard to notice any material shift in the POI no matter how hot it gets.


MikeN

[1371marine]

I run a Gemtech Halo, which is a pretty heavy can, on a lightweight barrel. I don't have any issues with shim overhang,etc... as I use a Smith Vortex which requires no shim for mounting. At first I ran it on a Standard A2 w/ a peel washer. As for issues, I had none with POI or anything else, even when introducing heavy rates of fire, mag dumps, etc... My barrel came from Model 1 Sales and you mention a DD barrel, so you should be just fine. Good luck in your endeavor.