UDL P320...(Or...Zing Zing, here's a thing...!)

I would never do such a thing :sweat_smile::joy:

Be a bit obvious if my tec-9 was magically hitting 330fps mate

I still think my mp40 retains its spot as my highest fps blaster, havnt really played with the chrono for a while but I dare say it still holds the lead for the moment but I believe next would be my JG Works Aug A3 at up to 320fps

ok, spring arrived today…

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A bit longer and thicker than standard.

Very easy to install, and off we go…

Pretty good results so far…

I was using manual cycling, and green cats soaked for 2:10 as per brads recommendations.

First thing… it was noticeably harder to cycle by hand.
This is not surprising, but will place a higher load of batteries.

Second thing…some failure to load gels / double loading, which wasn’t happening previously.

I’ll try a few different batches of gels, and also try using the batteries, to see how they handle it…

215 fps is pretty much the standard fps out of these…highest was 248, lowest was 180 on a double feed.

Pretty impressive, they can get a solid 215 out of this barrel length / spring combo…

Makes the tec-9 look a little wheezy.

Mind you, this has solid metal gears (sic) and thick robust nylon construction around it.

I’ll see how it goes…if it struggles with the batteries, and double feeding/ failure to feed at times, it might be better to go back to standard…

But, 215 fps is better than a stock JM MP5-K …
And Kele’s standard punch around the 150-160 mark.

I was gonna mention that stiffer springs load the whole system, which is what can cause the feeding issues when the stock motor/battery struggle to cycle the slide fast enough to be able to get the gel feed rate consistent and reliable.

Moar power and an upgraded motor should definitely fix the issues! :ok_hand::raised_hands:

A couple of quick mags through, on the 11v battery…

It mostly fed quite well…but a bit of a drop in fps…??

Weird.
Manual cycling, you pull the slide back tight, as far as it goes…it ends to feed a bit better and the higher fps.

Batt cycling…quicker cycling, but some are lower fps.

Weird.
But, still early days, and I’ll brew up fresh gels/ for multiple runs of manual then battery , on the 2 different springs…

Why was that brand, of the wonderful lipos you were having so much fun with.?
:rofl::rofl:

Bwahahaha, forget that brand, I’m still back and forth with them regarding my issues and LOVELY review that I left for them!

They have fully refunded the money for the two I purchased, and are asking me nicely to remove my Review… but I just said send me some decent replacement batteries and I’ll think about it. :stuck_out_tongue_winking_eye:

Funny you mention that though, because look what the Courier JUST dropped off!

I spent the extra money and got the highly tested and recommended CNHL batteries in the meantime, and am about to go take the IR readings, give them a charge and head out for a run this afternoon. :sunglasses:

Yeah the old “lose FPS on full Auto” certainly is a pretty common thing with certain Gelblasters, so no surprises there, especially with an EBB Pistol. :face_with_diagonal_mouth:

Single shot is more what I used my pistols for as a sidearm anyways, mainly due to the limited mag capacity more than worrying about the FPS!

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Not unusual for electric pistols to hit harder on a lower voltage.

The 14.8v SKDs always hit about 10FPS lower on the full 14.8 voltage.

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The funny thing is, its not full auto.
Semi only. Even with slow paced semi shots, a bit of a drop.

I wonder why manual gives slightly higher fps?

Anyway, 215 fps is still pretty impressive, for a pistol …

Must have something to do with the way manuals deliver their power. Same with the M97 manual shotguns… you can get 300FPS out of them and they still shoot the softer gels without destroying them. Seems to have a more gentle power delivery than an AEG with the same FPS.

From an engineering standpoint manuals shouldn’t be different… one uses manual force to lock back the cylinder under spring tension until you release it with the trigger, the other uses a motor to do the same until the sector gear releases it. Must have something to do with the way the gel engages in the t piece and the difference in dwell time before release that somehow increases latent energy in the spring :man_shrugging:

I’ve got a KELe Glock 26 that easily hits over 200FPS, and a KELe Glock 17 that won’t go past 180 using the same spring and cylinder / plunger setup.

But your pistol shows different power output when you switch between manual and AEG.

Look at me being all Julius Sumner Miller… :rofl:

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Only been able to out a couple mags through my P320, just with the green gels it comes with labelled as 7mm hardened, they feed and shoot but will need to test it with other gels cause it’s a bit erratic with distance and accuracy but it’s enough to make sure it’s working properly.

However I’ve noticed with the design of the mag, specifically the follower, it is incapable of using the last gel in the mag, there’s so much space in there it bounces around. It’s a weird quirk that’s for sure but once I get my printer setup going again I’ll be trying to fix that.

" I paid for all the gels so I’ma use all the gels" kinda thing.

Apart from that everything else seems to be working, just need to test other gels and adjust the hop to suit.
I wanted to get a cheap RMR or SRO to put on it cause why not but can’t import those anymore.

Was gonna try and make a pic mounted suppressor for it to and see how it goes running glow gels, seeing as the barrels not threaded on these.

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Some on ebay AU stock for under $50 if that’s any good. :+1:

Edit, Oh yea the sight I mean. :joy:

Edit: Oh nvm I just realized

Worst case I can print one, just won’t look as nice.

I shaped and glued a rubber block onto the top of the follower on my VP9… it had the same problem, not long enough always left the last gel in the mag.

Downside is it makes the fill aperture a little tighter but not unmanageable.

Ordered a red dot off eBay, their tracking is weird but it showed up, tried mounting it on my p320, nothing lines up.

Mounting plate the rmr came with I’m assuming is for a Glock cause it’s got a dovetail I’m guessing replaces the rear iron and the removing the plate on the blaster reveals no mounting options underneath and the mounting holes on the sight don’t align with ones on the blaster either… :smiling_face_with_tear:

Thought it was a pretty universal mounting at this stage, will probably have to get one of those universal plates for it otherwise it’s going on something else.

Thats a bummer. I haven’t played around with those MOS mounts so unsure but afaik there is 2 types. What they are exactly I do not know.

That is correct. The last gel can be “fired” if you turn the blaster upside down, otherwise the last gel is always stuck in the mag.

There are aftermarket barrels with a threaded front available, also upgrades performance and has a metal hop up instead of the nylon. Has been an improvement for me at least. Available in China from an independent shop that specializes in upgrades for pistols.

The RMR mounting plate is a bit different for the UDL P320. I got one with built in rear sights, but you can also find ones with an empty rear sight slot if you want to mount taller irons to get co-witness with your RMR. Again, available in China.

I put a suppressor on mine just for shits and giggles. So far I haven’t really noticed much interference with performance.




Mm hmm 3 types of patterns. Forgot Sig USA gotta have their piece of the pie besides Glock and Beretta. :roll_eyes:

Why bother with any of them, I didn’t and hit target at 170m open no problemo. :+1: