Ultralight Ultralight Rifles

[Taudisio]

Another questions since this thread has most of the info on Ultralight and the various parts options.

TN arms carbon lower. FarrowTech butt and A2 buffer. I ordered the tap from farrow tech for the rear takedown retention pin hole. Tap is 4-40 and almost slides right in the hole without resistance. Screw doesn’t touch a thing.
Thinking either a 3mmx0.5 tap and screw or 6-32 tap and screw. Currently have an end plate on but it’s 0.5 oz and I would prefer more buffer thread in the lower.

Anyone done this on the carbon and know the size?

I did not order the tap, I just threaded the screw directly in, it was loose enough, I covered the back with superglue. No issues with 850+ rounds.

My other rifle has a smoke composite end plate. It weighs nearly nothing.

 

[doverpack12]

Dang those are light! 6-32 tap worked well and I clipped a little spring off since the screw took up some of the spring area.

 

[SteveAndTheCrigBoys]

Any recommendations for tripod ball heads for shooting these lighter rifles off of?

Seems like a lot of recommendations out there factor in heavier rifles and heavier recoiling cartridges. The Leofoto LH-30 comes up a good bit at 11oz ish and 33lb load capacity.

There are also the following:

LH-22 at 4oz ish and 11lb load capacity
LH-25 at 6oz ish and 13lb load capacity

 

[Taudisio]

Any recommendations for tripod ball heads for shooting these lighter rifles off of?

Seems like a lot of recommendations out there factor in heavier rifles and heavier recoiling cartridges. The Leofoto LH-30 comes up a good bit at 11oz ish and 33lb load capacity.

There are also the following:

LH-22 at 4oz ish and 11lb load capacity
LH-25 at 6oz ish and 13lb load capacity

Leofoto MA-30 Low-Profile Inverted Ball Head Arca /RRS/ Picatinny Compatible | eBay

10 Year Warranty via Desmond Photographic. In Original Box.

www.ebay.com

I have this one, use it for my 6.5prc I have an arca plate on that is about 7 pounds loaded, and my spotting scope. I’m not an expert on tripod heads, but it was recommended by a friend and is the best one I have tried out of 10 or so that other friends have. I really like it and would see no reason to switch. The head is on a slik 624 so it’s pretty light and super compact. Never thought about a lighter head setup.

 

[KyleR1985]

I have a bear creek pencil barrel.

I have a drill press.

Carbide end mill in .120” (#31) is 15.00.

6-48 tap is 15.00.

I have a bunch of 6-48 rail and sight screws.



What’s stopping me from using the end mill to open up gas port to thread it? I have just over .2” of wall thickness. Would need .14 depth to get full thread engagement.


Basically performing the same procedure as drilling and tapping a barrel for open sights.

There’s already a hole in the barrel.


Am I missing anything here? Cheap try at a non ported barrel. Thoughts?

 

[Dukhtr3]

I have a bear creek pencil barrel.

I have a drill press.

Carbide end mill in .120” (#31) is 15.00.

6-48 tap is 15.00.

I have a bunch of 6-48 rail and sight screws.



What’s stopping me from using the end mill to open up gas port to thread it? I have just over .2” of wall thickness. Would need .14 depth to get full thread engagement.


Basically performing the same procedure as drilling and tapping a barrel for open sights.

There’s already a hole in the barrel.


Am I missing anything here? Cheap try at a non ported barrel. Thoughts?

That's what I did to my bear creek barrel. Only 10 rounds shot so far.


Sent from my Pixel 7 Pro using Tapatalk

 

[JBradley500]

I tapped my gas port 4-40 and loctited a set screw in there. I assume it would have been fine but I put a sleeve over it too just in case.