ump45 has arrived! she needs some tuning still but the recoil with the steel bolt feels just as good to shoot as it sounds against the polymer receiver ❤️ i installed a slew of upgrade parts and modifications, detailed under the cut ^^
i got this ump second-hand back in march for a good price cause i've loved this gun since playing cs:s as a kid! only problems is that the bolt catch spring was missing meaning that it would lock open on full, and the previous owner didn't remove the outer barrel to paint the orange off which left it looking kinda.. uggo. looking into what i could do about these issues, i found out that this replica has an incredible aftermarket thanks to the guillotine boutique shop, nice diy improvements from the community, and decent real steel compatibility for realism :3
this one has been in the works for a bit while i've been busy so i don't have pictures of progress on the lower frame, but it's the first part i worked on. after removing a buffer from the recoil rod which restricts full bolt travel, i rounded down the front of the hammer and placed a real ump buffer into the conveniently moulded slot to give the system higher recoil and a more realistic fire rate with a full travel mod!! i still need to get a 3d printed spacer for the buffer as i'm just using washers right now, but i don't have a printer so this is fine for now. i also cut down a pen spring to fit in the mag catch slot since i don't wanna pay for importing the OEM part, and i'll probably make another one that's just a little longer since i had a premature lockup against the heavy recoil in the demo video 😌
i also swapped the stock aluminum bolt out for the guillotine steel bolt in order to further exchange fire rate for recoil! this originally started as a low weight and high cycle rate build, but the real steel version having a low cyclic rate with a heavier pistol cartridge makes the tradeoff a no-brainer 😭 after some fitment with the nozzle stopper on swapping the airflow parts over, the heavy steel makes the replica really sing during shooting 🥰🥰
where i left off on is replacing the sloppily painted pot metal outer with a steel one from guillotine, and upgrading the accuracy parts since that's quick and effective while i'm already in there :> i opted to keep and clean the stock inner barrel since the maple leaf decepticon bucking should give me all i need for indoor field consistency 😊 fitment was tight on re-inserting both the hop chamber into the steel barrel, then barrel into receiver, but this is normal. now i've got threads for a muzzle device, stable shots due to the tightness, fantastic weight balance with the steel bolt, and most importantly a good looking barrel 😩 i'm still waiting on a real steel roll pin since my stock one deformed, but the barrel is so tight that it's actually held in by tension LOL....
after that i just ran different external parts i had on-hand, prioritizing what's most ergonomically comfortable with a secondary objective of functionalities such as QDs and tracer function. my real steel eotech's retro look and natural rise lends itself perfectly to the ump, and the h&k foregrip is a ump staple for good reason!! i really like the suppressor look, but i'm going to try out the acetech bifrost as it will likely make for a better vod viewing experience with tracer rounds and muzzle flash ^^ lastly, i threw on a couple magpul QD points so i can use my AR sling, but i'll make adjustments to this as i go since it felt a bit short during recording. i was worried about adding the surefire hlx as this was already a pretty heavy package, but the weight savings from the polymer receiver work well with the controllable ergonomics to give an extremely balanced build even with a flashlight! 🥰🥰🥰
