In my country, we use Skateboard sandpaper tape.

Not really for 1911 systems.

I think Illusion mentioned that it didn't work for him, the NB floating valve spring. It kinda worked for me with my stock plastic MEU slide but it decreased my bb capacity to 14 per mag, with a rise in FPS of course. I don't think it'll work well if I installed a heavier, metal slide onto my MEU but I'm only guessing as I haven't tried it before.

I'm getting 18 bbs with the stock floating valve. btw, I measure my bb capacity by shooting as fast as I can out of a mag. The bb cap. is measured with the condition that the slide has to lock back at the end.

Last year I did compete in singlestack division by using TM MEU base with PGC Kimber Warrier conversion kit. By using AS Super Light Weight Speed Blow Back Housing with NB floating valve spring and SD nozzle and change the recoil spring 20% softer(PDI) than STD TM spring with buffer spring. I could shoot 44-46 rounds/1 mag base on R134 medium gas. But my gun can not lock back due to my setting.
Might be the temperature in my country is much hotter than yours.
PS. NB floating valve spring do not go well with AS nozzle because the spring holder inside the nozzle is a bit different than the STD and SD(It make the floating spring a little bit harder).

Congrats! :smile:

Ah I forgot to mention that I'm using guarder 150% recoil and hammer spring, as well as KM high flow valves for my setup on green gas; hence the low bb capacity.

I'm not sure I would say that is the reason why. I am also using green gas, Guarder 150% springs and KM high flow valves in my Nova Warrior build, and I'm able to get more than a full mag's worth of BB's out of a full gas fill. I believe last time I checked, I was getting around 30 shots a mag.

I have no idea as well. In fact, all the 1911 users I've heard about in Hong Kong (but it's not a lot) have always said that they never managed to get a full mag's worth of bbs. For a full mag's worth, I've only managed it with a completely stock MEU and used 134a gas to pull it off. My internal upgrades (related with gas) are:

Guarder air sealing routers for 1911 mags
KM high flow valve
Nine Ball dyna piston head
Nine Ball hop up rubber
Nine Ball 6.03mm 112.5mm (MEU) tightbore
Shooters Design POM nozzle (used the nozzle and valve block only)

I'm not sure whether it's the weather in Canada or there's something I'm doing wrong....in fact I was quite surprised to read a LOT of people in canada managing to pull off 30 to 40+ rounds from a single fill of the mag. I'm filling up the mag to full gas capacity as well (until the fill valve starts to spew out gas in a misty vapor).

If anything, we should be getting worse mileage due to how cold it is here. Maybe it's because we finally stopped using overpriced and unsafe green gas, and go for straight propane now. The larger tanks do have a higher psi when they're fresh.

Alright I had a look around the internets and checked ASC but couldn't find anythingg useful.
My dear Kimber Warrier (TM PGC kit) is being a pain.
(At room temp) Fill up any of the three mags, get 4-6 shots off while a couple of the first shots spray some gas out of the sides (chamber maybe) of the gun, then the gas runs out (not cool down, just runs out).
Mags are good, no leaks and properly lubed. Any thoughts on what might be awry with the pistol?

Planning to build a 1911A1 based GBB for skirmish with :

PGC Colt Delta or MKIV mbk
150% Recoli spring
150% Hammer spring <- Do I really need this?
NBall Long recoil spguide & plunger set
TK twist inner barrel
KM Hop Bucking
Airsoftsurgeon Super hard loading nozzle
Airsoftsurgeon Piston Head

Rest of the internals will be stock TM1911 (blowback housing, hammer mechanisms, etc.)

Aside from proper installment and fitment, what other parts should I consider into buying for durability / accuracy / gas efficiency?

Many thanks in advance :D

(This would be the first time I build a TM-based 1911)

hehehe I love your name Y&D FTW!

Hm...maybe that's the case. In HK, we generally use the bottle green gas. Nobody uses the cans of propane.

Can you tell me why green gas is unsafe?

In my personal believe "The fastest cycle of the pistol more save on gas"
I never use 150% recoil spring with my pistol but use only STD TM spring or PDI 20% softer than STD TM spring with AS hammer spring only.
It works about the same purpose but I get better gas management and faster cycle.

The fastest cycle of the pistol more save on gas"

Uhh....what? I don't get that:p

Are you saying that you get a faster cycle with a 70% recoil spring and a 150% hammer spring?

I haven't tried it myself except when I tried using the stock TM spring with a gurader 150% spring. the only problem was with the hammer touching the nozzle when the slide goes back...the 150% hammer spring gives too much friction between the nozzle and the hammer itself for the stock recoil spring to put the slide back into battery.

Sounds like the nozzle is cracked. Did you ever upgrade it?

The cans fail a lot of international safety standards. There are some threads on Arnies Airsoft that have pictures showing what happens to people's cars when they leave a can of green gas in there on a hot day summer day. Literally explodes a hole through the roof of the car.

What PungPound71 is saying makes sense, and I also have the same belief. The faster the slide blows backwards, the sooner the disconnect lever will release the valve knocker, thus, reducing gas consumption.

Reducing gas consumption in the slide movement requires:
1) Reducing moving mass: weight of the slide and all components that move with it.
2) Reducing forward or static pressures that restrict reward movement of the slide: recoil spring

Just disassembled and there are no cracks to the nozzle that I could see unless it could be microscopic?, but it is the stock assembly...