Gas-port regulating gas-block insert install and DIY manufacture.

[prepare]

I always thought these were better than the gas tubes for DIY'ers.

[MegademiC]

The last comment on this thread was 5 years ago.

[Clint]

Better is a relative thing.

Inserts have less material cost, but they are far more involved to make and install.

Believe it or not, most people aren't master armorers with the skills and tools to properly size, modify and install an insert.

They also generally don't want to spend 3 hours performing surgery on their rifle when 5 minutes will do.

We sell FAR more tubes than we ever did inserts.

We believe one of the major reasons is the quick and easy installation of the EZTUNE.

I always thought these were better than the gas tubes for DIY'ers.

[markm]

Having done both, the Tube is WAY better! The insertable saved some of my barrels from becoming paper weights, but it's advanced level installation.

[prepare]

I make my own inserts so it’s more cost effective.

[markm]

I make my own inserts so it’s more cost effective.

I did one or two myself as well. I'd pay for the tube any day over doing the insert myself.

[georgeib]

I also have both, and the difference in ease of installation is in orders of magnitude. To be fair, for me the drilling and tapping of the gas block wasn't particularly difficult, I even resized my insert once or twice as I had ordered a couple sizes too small. The pain in the butt part was removing the pinned BCM FSB. Crazy tight, and no amount of hammering would get the pins to move. I ended up buying a jig that allowed me to get the pins to move before I was able to use a hammer and punch.

The gas tube, OTOH, is as a simple as installing a gas tube. Even if the gas block ports were still available, I don't know that I would ever buy them over a gas tube. Not worth the drama, even on an unpinned gas block, IMO.

[Disciple]

I make my own inserts so it’s more cost effective.

I always thought these were better than the gas tubes for DIY'ers.

I think the easiest and least expensive solution would be an undrilled gas tube, perhaps with a dimple at the correct location. With the BRT tubes you are clearly paying for the experimentation that went into selecting the orifice size. If one is willing to do that himself, drilling out the hole until it is just right for a given system, there is no reason the tube should be more than $15.

[joedirt199]

If you can get the hole tapped deep enough in the gas block, you don't need to do all the fancy milling of the inserts. I had 4 cans clear this week and have most of my gas blocks set up with vented set screws. The .625 blocks seat the insert deep enough that it will hold the gas tube in place and allow a little more volume for the gas to expand before going through the vent toward the bolt. The .750 gas blocks, I need to modify my tap to fit through the bottom set screw so I can thread deeper into the gastube hole. I grabbed a few sizes of drill bits for opening up the vent hole once testing starts at the range. Vice and electric drill are all I have needed to do this modification.

[markm]

If one is willing to do that himself, drilling out the hole until it is just right for a given system, there is no reason the tube should be more than $15.

Sort of along those lines... when Pappabear, here, asks me which tube to get, I tell him error on the small side. If it's too lean, I can open it up, but you can't go the other way.