Removing A2 flashhider and installing a FSC556....HOW?

[30in1]

I have a Daniel Defense M4 that I am removing a factory A2 birdcage and replacing with FSC556.

I called around to get it installed, but the shortest is a week turn-around time. This is my duty patrol rifle and I need it for work. Suggestion?

I do not have any specialized tools. I was told that all I need is a crescent wrench. Is that right? Should I worry about twisting the barrel, receiver, FSB, or rail without a receiver vise-block?

Also, the FSC556 has shims to make sure the ports line up right.

Thnx

[Singlestack Wonder]

The proper way to to this would be to have a receiver block (DPMS makes a good one). For as little as they cost, why take a chance and ruin the rifle? The FSC probably came with a crush washer which allows the proper timing of the compensator. You can do a search on how to install a muzzle device using a crush washer.

http://www.brownells.com/.aspx/sid=4...Receiver_Block

[Belmont31R]

I use a 3/4" open ended wrench. Fits the flats just fine.


With the spacers you need to "time" the device to your barrel. You have to try different combo's of them until you get it lined up.


Looking down the barrel from front to back you want to be able to get the device to about the 1 or 2 o'clock position before tightening with the wrench. Much more than that and its going to require too much torque to time properly.


You don't need a vice block or anything to do it. Ive done plenty just holding the gun between my legs. Its not a barrel nut or anything.

[Buck]

WECSOG

Off with the old....




And on with the new...





B

[Robb Jensen]

Proper way equals a vise , barrel blocks and a wrench.

[Mate]

This might get me flamed, but I just used a screwdriver.

[Robb Jensen]

This might get me flamed, but I just used a screwdriver.

I've seen some people do that but many times it results in damaged flash hiders and or damaged or broken screwdrivers. YMMV.

[kwrangln]

I guess the biggest question is what length is your barrel?

If you have a 14.5" barrel then your current FH is pinned in place and is going to take some work to remove and replace. Think grinder, drillpress, welder or torch.

If you have a 16" barrel then just unscrew and install the new brake as has been covered already.

[Mate]

Since he said DD M4, I'm gunna guess 16".

[Peanut]

This may be out of my lane, if so, sorry.

Doesn't the flash hider (A2) need to be torqued, then turned clockwise for TDC alignment.

Does the FSC556 need to be torqued?