14.5" or 16" mid length upper?

[zero]

Check with him about the huldra uppers?

[Dave Timm]

Or feel free to contact me, I'd be happy to answer any questions about our stuff. We have mid legnth in both 14.5" and 16" guns as well as a carbine length 16" rifle. The difference between a 14.5" and a 16 is minimal, our 14.5" guns/uppers have a perm attached muzzle device so they are legal over the counter. The gas port is different between the two mid length rifles to adjust for the difference in dwell times.

I know some guys who run 14.5" SBRs and compared to 16" rifles I don't find much of a difference. I run some 10.5" and 11.5" rifles for duty and while sometimes helpful, I would even argue that an SBR isn't necessary for tactical use for the vast majority of situations. Clearing a ship may be one thing but in my experience I've been very well served by running 16" rifle. I've come to prefer a 16" mid legnth as virtually my favorite all around rifle.

Let me know if you have any questions about our products or anything technical in general. Id be happy to help out any way I can.

Thanks, Dave
Team Huldra Arms - Mills Fleet Farm

[zero]

Wow dave him self! I love the choice of the name for the upper, i named my lower huginn and muninn so it fits well. Well sir your just a little late...i went and bought the 16" mid upper today! Im a big fan of gas piston and im really loving this rifle on my poly lower. Anything you wanna tell me i would be more than happy to learn! I saw a gentelman the other day with some huldra swag, is there any way i can help support the company too? Now i have to get out and burn some ammo as soon as possible!!

[kollector03]

You might check with Globeflyer - one of our own here on MNGT.

I recently picked up an upper from Globeflyer. Good folks to deal with.

[Dave Timm]

Wow dave him self! I love the choice of the name for the upper, i named my lower huginn and muninn so it fits well. Well sir your just a little late...i went and bought the 16" mid upper today! Im a big fan of gas piston and im really loving this rifle on my poly lower. Anything you wanna tell me i would be more than happy to learn! I saw a gentelman the other day with some huldra swag, is there any way i can help support the company too? Now i have to get out and burn some ammo as soon as possible!!

We recomend lubing the carrier as you would any other AR, I'm a fan of generous lubing. Also a light coat or glazing of the piston components with a quality lube will help when it comes time to clean. Every now and again take the piston components out wipe them down with the cleaner of your choice, light lube and keep going. The carrier and chamber will stay pretty clean. Make sure to register your upper on our webpage and we'll make sure to send you some swag as well!

Thanks for the purchase and support of our products and stores, we appreciate it!
Dave
Team Huldra Arms - Mills Fleet Farm

[zero]

You say to lube the piston, what about where the piston goes around the gas plug? I can understand the rod but not that area. I was very impressed by the round count on the 5.45 upper before failing, have you thought about about doing a test like that on the 5.56 upper? Your welcome sir, thank you for supplying a quality product.

[Dave Timm]

Yup all the piston parts, the plug and the drive rod can benefit from a light coating or glaze of lube. I wipe all the parts down with lube after cleaning and reassemble. We have done some endurance with the 556 but it's pretty boring as they run better then the 545 due to the better quality ammo, more folks were interested in the 545 as it was corrosive ammo.
Thanks again,
Dave

[zero]

Have you guys thought about doing some torture testing with the ******* nastiest 556 ammo you can find? Like say wolf, tula ect? I only ask because thats my favorite crap to shoot anyways hahaha

[Dave Timm]

Yeah we have. However we purposly did not over gas our rifles and uppers. Meaning that we used standard gas port sizes and we recomend using quality ammuntion. Are their guns out there that will run Tula wolf, bear, etc, yes and they are usually over gassed so the factories won't get support issues when customers shoot inexpensive ammo. We choose not to do this because over gassing also has alot of expenses including premature wear, parts breakage etc.

Our rifles are "tuned" to run standard quality ammo, if you run some of the cheaper stuff you may need to tune by either a reduced power recoil spring or lighter buffer depending upon what set up you have. If you exclusively want to run cheaper ammo we can open up the gas port slightly to accommodate that at the expense of being a little over gassed when running the good stuff. It basically comes down to physics, we use generally the same size gas ports as a quality in spec DI gun. So it obviously takes more energy for gas to operate a piston drive rod then travel down a gas tube.

That's kinda the short technical answer, I could go on and on about gas ports, pressure spikes, dwell times, resistance and more if you really want to get board .
Thanks again!
Dave

[zero]

mmmmm information love it! gotcha gotcha, have you guys thought about having a the gas valve have a setting for "cheap ****" instead of "supressor" since we cant get those here anyways (sadly)? or would it still be over gassed? i may get a lighter buffer just for ease of use, that seems like a much better idea than drilling out the gas port, the cheap ammo is simply cheaper to shoot with which means more practice time, yea i know your gonna say get the 5.45 upper, but if something were to happen it is nice to be able to have all my cheap ammo that i have laying around and bring it with me without having to worry about bringing another upper as well.