Shizbazki
Supporters
- Oct 4, 2014
- 785
- 144
I'm interested into using HPA for my TM pistols for consistent (safe) FPS
TL
R whats better Mancraft or CQB Russian systems?
As we all know when you fill a mag up with Green Gas (Propane) and shoot, as each shot is fired two things happen. One, for every shot fired there is less propane pressure for the next shot meaning shot 1 will be at an FPS of say 300 and shot 25 at 270FPS. Two, each shot fired means a rapid expansion of propane gases which in turn cools the mags down meaning they get colder.
With the above in mind this means that for every shot not only do you lose pressure because a shot has been fired, but that pressure drops also because the mag containing the propane is getting colder per shot.
Now the above didn't bother me as i always ran my TM Beretta M9 in stock so plastic slide etc and this ran fine in all seasons, however i recently acquired a TM Glock 22 and converted it into a Glock 34 using a GunsModify Salient Arms Aluminium Slide which is alot heavier. Indoors this pistol ran perfectly fine from shot 1 (315FPS) to shot 25 (270FPS) though there was a dip in FPS consistency and in the last few shots i can feel the slide struggling to cycle. Last Sunday i went skirmishing, morning temps was around -4C, the G34 straight up suffered cycling issues around 10 rounds in and I vented a TM mag for the first time ever.
Due to cold weather issues (and the UK has plenty), the unreliability of propane (compared to HPA), the cost effectiveness of HPA compared to propane and the fact that i am a stickler for consistency both from shot to shot and from first shot to last shot i want to move over to using HPA.
Now bare in mind i already have a Polarstar System i have already have a 12ltr 300bar scuba tank fill station and i intend on getting a 13ci tank in the future to power it.
I have looked around and seen i have two options, one is to go for Mancrafts Pistol Lanyard and the other is to use the CQB Russian valves. So far my reasearch has pulled the following:
Mancraft:
Pros:
Lanyard looks like a Lanyard
Lanyard is coiled
Cost of various items individually is cheaper
Purpose built for pistols
QD Connector is smaller therefore more compact
Cons:
Uses a different QD Connector
I think uses 4mm Macro lines
Long lead times for dispatch
Needs an adapter for standard HPA regulators
CQB Russian
Pros:
Uses standard HPA QD Connectors
Can use standard HPA Regulators
Proven track record
Cons
Standard HPA line might be heavy
When disconnected, valves dont shut off mag therefore heavy loss of air
Some have said the valves are brittle
I have weighed the pros and cons of each one but before i buy i thought i would ask the forums what they think?
TL
As we all know when you fill a mag up with Green Gas (Propane) and shoot, as each shot is fired two things happen. One, for every shot fired there is less propane pressure for the next shot meaning shot 1 will be at an FPS of say 300 and shot 25 at 270FPS. Two, each shot fired means a rapid expansion of propane gases which in turn cools the mags down meaning they get colder.
With the above in mind this means that for every shot not only do you lose pressure because a shot has been fired, but that pressure drops also because the mag containing the propane is getting colder per shot.
Now the above didn't bother me as i always ran my TM Beretta M9 in stock so plastic slide etc and this ran fine in all seasons, however i recently acquired a TM Glock 22 and converted it into a Glock 34 using a GunsModify Salient Arms Aluminium Slide which is alot heavier. Indoors this pistol ran perfectly fine from shot 1 (315FPS) to shot 25 (270FPS) though there was a dip in FPS consistency and in the last few shots i can feel the slide struggling to cycle. Last Sunday i went skirmishing, morning temps was around -4C, the G34 straight up suffered cycling issues around 10 rounds in and I vented a TM mag for the first time ever.
Due to cold weather issues (and the UK has plenty), the unreliability of propane (compared to HPA), the cost effectiveness of HPA compared to propane and the fact that i am a stickler for consistency both from shot to shot and from first shot to last shot i want to move over to using HPA.
Now bare in mind i already have a Polarstar System i have already have a 12ltr 300bar scuba tank fill station and i intend on getting a 13ci tank in the future to power it.
I have looked around and seen i have two options, one is to go for Mancrafts Pistol Lanyard and the other is to use the CQB Russian valves. So far my reasearch has pulled the following:
Mancraft:
Pros:
Lanyard looks like a Lanyard
Lanyard is coiled
Cost of various items individually is cheaper
Purpose built for pistols
QD Connector is smaller therefore more compact
Cons:
Uses a different QD Connector
I think uses 4mm Macro lines
Long lead times for dispatch
Needs an adapter for standard HPA regulators
CQB Russian
Pros:
Uses standard HPA QD Connectors
Can use standard HPA Regulators
Proven track record
Cons
Standard HPA line might be heavy
When disconnected, valves dont shut off mag therefore heavy loss of air
Some have said the valves are brittle
I have weighed the pros and cons of each one but before i buy i thought i would ask the forums what they think?