Le Juge - Super Smooth Side Prime "Stubby" Talon U Bull Pup - Quick and Kinda Easy Mod !

Introducing the Le Juge!   

It's named after this ridiculous french singer - smooth and cheesy and ridiculous.   It also means “The Judge” to complete the randomness.

What: 

It's a cut down, shorter TC U Bullpup.  Got it from 55Samba a long while back pre-covid.  It might be the exact one in the photo in the listing.  Refitted to be a side prime to replace pump, with shorter priming arms + shorter u channels.  Super smooth, easy prime with additional rail.   See pix for size comparo to OG Talon Claw and Caliburn U.

Why: 

Why chop up a perfectly good BP TC U?  Well, its not shorter than a regular Talon Claw.   It also looks kinda goofy.  The BP rear is still not long enough for adults so it needs a stock….   No one used it, and it wasn't cool anymore compared to a Lynx.  Time to remix.

Made for my daughter with normal Talon U BP rear (running 788 spring).  With a .509  barrel (5") gets about 100ish FPS.  Probably can handle a K25 and longer barrel but untested.   After cutting, the whole thing it's super short and agile – perfect for kids, close quarters or hvz.  The PCAR makes it surprisingly pretty accurate .   Will try a 3x3 BCAR soon for few more FPS. 

The extra top rail keeps things rock solid and smooth -  likely not needed with 788.   Where did I source the polished stainless steel round rail you may be wondering?  It's a metal drinking straw I had lying around in the garage ;)   It's 7.5 mm OD.   If you make this mod, just resize the rail hole in the priming block to fit whatever you have available.   The model is pretty basic. The block rides on top of the U channels to minimize slop. 

The priming grip can be left or right handed - just flip the sides.   It connects with a long M3 bolt - I think its like 40MM - it was lying around and fit.   I used a heatset but it was tight enough to not need it.  I used the fuzzy skin on the handle but its optional obviously.   

How:  

Printing Suggestions:

PETG - 8 walls, 100% infill for handle part and block.   PLA will probably work but PETG is tougher and slides significantly better.   Anything with CF or GF will require sanding of the bottom of the priming block to be flat and smooth.   I printed the block on its side so the holes for the priming arms and the handle are facing up.

Assembly Notes + Warning:

Although this mod uses the absolute minimum of new hardware (1 bolt), the assembly is not super easy.  There's some measuring, cutting and drilling. If you don't have the proper tools and skill, get someone to do it for you. Or skip this mod altogether.  Please take care and use eye protection, etc, etc. If you hurt yourself, I warned you!   

Cutting - Alas I did not measure it.  I built it as one off.  BUT this how to do it.   

Priming Arms:

0) remove barrel 1) prime and mark a priming arm (tape works) when it lines up with the front of the front magwell.  2) Then (gently) un-prime mark again and add 40 mm to the front of the first martk.  3) measure again.  4) remove priming arms and cut. 5) Put the priming block on the front of the priming arms and mark 2 hole per arm.  6) remove arms and drill holes.   I used a punch first.  7) Re-attach priming arms to the old stuff and attach new priming block + barrel

U-channel:

0) remove front muzzle (leave barrel) 1)  line up to the front of the priming block and mark the u channel.  2) remove u-channels. 3) add a 2-3 mm for margin and cut u-channel.  mind that you cut it straight across.  4) reposition front muzzle mark and drill hole - any drilling guide for a T4 will work.  I was lazy and just measured, punched, and drilled. 

Custom top rail:

Please use whatever you have thats smooth and the approximately 7.5mm OD. If you use as SS straw you can follow the steps below.

0) re-attach the u-channel, the priming block, and priming arms and front muzzle (no barrel). 1) measure the distance from the back of the front muzzle to the front of the front magwell along the u-channel.   2) add 10mm to that measurement and source a re-useable SS drinking straw.  3) cut straw.  note -stainless steel is WAY harder than aluminum and gets HOT when cutting.  Use care.  4) remove front muzzle.  5) heat up the front muzzle (back end) top hole.  Just soften, don't melt. shove straw in 5mm.  Its should be a tight fit. 6) heat up the front of the front magwell in the same manner and shove the back end of the straw.  7) Measure the exposed rail distance and make sure its the same as the distance from the back of the front muzzle to the front of the front magwell along the u-channel.   Just make sure its square.   if not, heat up ends gently and adjust the rail.

Priming Handle

Its keyed.  pop the long side in the side of the priming lock (on the left if you are right handed) and the short end on the opposite and secure with the bolt.

Attach barrel, tighten all the bits -  All done ! 

Use and enjoy at your own risk.   YMMV.