AR Free Float Conversion

[snorky]

I currently have a BCM midlength upper with the MOE forearm and I would like to convert to a free floated barrel with the Samson Evolution 12.37" forearm. I know I'll need to get a new gas block, remove the delta ring from the barrel nut, and buy/borrow a punch set for the pins, along with obviously buying the rail system.

Can anybody provide some guidance on how to go about performing the swap without an upper receiver vise block, or will I even need the vise block to do this?

This is what my setup looks like right now for reference.

[THEJAPINO]

You can do everything with a dremmel, cut-off wheel, grinding bits, alumihyde.

You can chop your fsb to make it into a pinned lo-pro gas block. You can even leave it on the barrel if you tape everything up. Search 'chopped FSB'

Cut off the delta ring and spring and install the Evo rail.

[snorky]

Considering I want a pinned gas block, that works perfectly. Thanks!

[jvh22a]

I'm using rainier evo 11" on a 14.5" with bcm gas block with set screw. Real easy install.
You won't need the vise block at all. Just cut the rings and swap out the gas block. I didn't want to cut the original and some gas blocks are so cheap its not worth the time.

[snorky]

Just got done cutting off the delta ring, spring, and retainer. I ended up ordering the Samson Evo 12.37" since I couldn't find the Rainier Evo 12" anywhere.