What upper receiver holding block?

[DNS]

Is the dpms claw or the clam shell type preferred?

[Amicus]

My take:

1. I haven't used my clam shell-style in years.

2. The DPMS upper block ("claw") is better for most applications. Be prepared to modify it slightly if you use Vltor MUR uppers. I use this for mounting scopes, sights, and similar non-torquing activities.

3. For almost all uses involving torquing something attached to the upper (e.g., barrel nuts, muzzle devices) I use a Geissele Reaction Rod (best alternative).

[titsonritz]

My take:

1. I haven't used my clam shell-style in years.

2. The DPMS upper block ("claw") is better for most applications. Be prepared to modify it slightly if you use Vltor MUR uppers. I use this for mounting scopes, sights, and similar non-torquing activities.

3. For almost all uses involving torquing something attached to the upper (e.g., barrel nuts, muzzle devices) I use a Geissele Reaction Rod (best alternative).

Same here.

[elephantrider]

The DPMS claw works, but you need to rotate the upper 90 degrees, so that the vise is clamping through the vertical axis of the upper

On a budget? This works perfectly fine:
https://www.plastixrevolution.net/co...ver-vise-block
Want the nicer tool, that is a little faster, more convenient to use? This:
https://geissele.com/ar15-m4-reaction-rod.html

[titsonritz]

I go with a Magpul Bev Block is budget was the main concern as it will handle both the upper and lower.

[Amicus]

The DPMS claw works, but you need to rotate the upper 90 degrees, so that the vise is clamping through the vertical axis of the upper

On a budget? This works perfectly fine:
https://www.plastixrevolution.net/co...ver-vise-block
Want the nicer tool, that is a little faster, more convenient to use? This:
https://geissele.com/ar15-m4-reaction-rod.html

I have to admit that using the DPMS claw rotated like that never occurred to me. Then again, I still fool around with old A2 uppers with integral carry handles (at least sometimes), and that would not work well.

Even with care and a block of soft wood to cover the Pic-rail on the "top" of a flattop upper, I would be a little trepidatious with that setup. Could be done though.

[joeg26er]

Magpul bev block