One Legged T-Rex (OLTR)

[zulubravo44]

Test firing

Finally made a test firing video, in case anyone is still following this thread:

[Laku]

Finally made a test firing video, in case anyone is still following this thread:

That's nice! I need to learn how to properly walk a trigger.

I made a short video when I adjusted my OLTR but I positively suck at walking

[zulubravo44]

That's nice! I need to learn how to properly walk a trigger.

I made a short video when I adjusted my OLTR but I positively suck at walking

Luke's Ultra Blade trigger made all the difference (and trigger guard room) in the world. I had one of his other triggers in there before and couldn't walk to save my life. I'm still no expert, but it's a whole lot easier than it used to be with the new trigger.

[luke]

Sweet! Thanks for the video.

[UltraMag527]

Cant wait.
Luke Custom's is working on my stuff now.

[zulubravo44]

Not that anyone has looked at this thread in a while, but here's another test video of the OLTR firing with an Xvalve and Luke's ultrablade trigger. I've been playing a lot with the pressure on the LPR-FG, and for a while I was having consistent two shot bursts because pressure was slightly too low. It was kinda fun, but now it's back to tuned just about right.



Link here incase embedding doesn't work:

https://www.youtube.com/watch?v=4dD6yy-RhjY&feature=youtu.be

[luke]

Thanks for the video.

I'm not expert at walking a trigger but it helps me if I concentrate the top of my fingers tapping against the trigger guard instead of the trigger itself, that way you let the trigger reset properly.

[tucson.az.jbreen]

Can I ask what the oltr mod does?

[luke]

It lightens and shortens the trigger pull which allows you to walk the trigger.

[zulubravo44]

It lightens and shortens the trigger pull which allows you to walk the trigger.

To further clarify, it's basically a single drop-in alternative to doing a pneu-mag conversion. You still need a low pressure regulator to provide the low pressure air, but you don't have to mess with the MSV and other little parts. Instead you get one brass box that goes inside the grip, with one airline, that makes your 'mag rip.

It works really well with Luke's mini vert grip (as a true drop-in mod). Other grips (intelli, M86, etc.) require some milling to make it drop-in.

Luke's also makes a foregrip that has an internal regulator that feeds low pressure air directly into the rail, so you get what used to be called a "sleeper" set up without having to hide a small LPR in the grip as well.

Check out http://dev.automags.org/forums/showt...40#post2885740 for some examples of how it's used (the OLTR itself is the little brass box inside the grip in the first picture).

[zulubravo44]

It's been a hot minute since I've been on here... busy with a move and changing up the work arrangement, but I haven't stopped tinkering. I'm just now realizing that the OLTR is rapidly becoming defunct technology... Luke's pace of innovation is almost as fast as Silicon Valley!

Anyway, I got my hands on an SHP a while back and finally got into tuning my OLTR mag in the back yard. I was dropping the pressure and then this happened:



It's pretty cool/fun, since a two turn difference in the pressure on the LPR FG is the difference between insane RT (which is really sustained full auto, I was just squeezing and letting it shoot for a second in the video but it will keep going). It's all back to normal semi-automatic functioning now, but I like knowing that I can dip into this to blast back at the ramping idiots at the big games around here.

The ball break at the end is probably because I just had a short stack of balls and wasn't force-feeding with the rotor anymore.

[luke]

Very cool. I like to tune them within about 1/4 turn from run away, it makes them very walkable and fast.

There are a bunch of OLTR's out there but I've gotten pretty much no feedback at all (pros or cons) and I've seen no buz about them around the various forums. I'm beginning to wonder if these are actually being fielded and put through the paces?

[luke]

zulu b, have you tried the Ultrablade trigger with the OLTR? Hands down it's the best trigger to use with the T-rex.

[BLachance75]

It's pretty cool/fun, since a two turn difference in the pressure on the LPR FG is the difference between insane RT (which is really sustained full auto, I was just squeezing and letting it shoot for a second in the video but it will keep going). It's all back to normal semi-automatic functioning now, but I like knowing that I can dip into this to blast back at the ramping idiots at the big games around here.

Mine is closer to about 1/2 to 3/4 turn on the LPR FG between shootable and out of control.

There are a bunch of OLTR's out there but I've gotten pretty much no feedback at all (pros or cons) and I've seen no buz about them around the various forums. I'm beginning to wonder if these are actually being fielded and put through the paces?

Sadly mine has only seen the field for 1 game this year. With the ultrablade even I can somewhat walk the trigger. Most people were shocked when they found out that it was a mechanical gun and not an electro. The few that tried it that can actually walk a trigger mad it rip. My gun is on the winter project list to get anodized and hopefully I will get to the field more next year for non-pump play.

[rawbutter]

I finally got to see a T-Rex up close last week when a fellow magger visited my house for some tech help, and I gotta say I'm very impressed over all.

One question, though. Is it supposed to squeak when you hold down the trigger? I know that a pneumag built with a MSV valve vents when you hold down the trigger, so I'm kinda assuming the squeaking is the same sort of thing. I could hardly notice it at all during rapid fire. But if I fire once and hold down the trigger, there's a definite, high-pitched leak/vent happening somewhere.