Materials used in PTPs
Posted 29 December 2012 - 12:54 AM
Straight out, I'm assuming that the "alloy" is not stainless steel. Most of the 1911s on the market made of stainless steel weigh in the 40 oz ~ 42 oz level, which the PTP is most definitely not. This leaves me with assuming it is something similar to aluminum, although the aluminum framed 1911 I know of is a bit heavier then the PTP. Whatever the PTP is, I'm assuming it is lower in density then aluminum.
What exactly is the metal alloy used? Does anyone know?
And furthermore, what is stopping KWA from actually using a steel frame and steel rails on the slide? This would IMO simulate the weight of a steel 1911, which is much more common then the aluminum and scandium 1911s.
Posted 29 December 2012 - 06:31 AM
My Mark I PTP weight 35.5oz loaded about 5oz less than my loaded (7+1) stainless Ed Brown Kobra Carry (Commander) and 10oz less than my Colt Government model. But she's 3.5oz heavier than my loaded Colt Commander with the aluminum frame. I'm still saving for an aluminum alloy Kobra Carry.
The weight in the Mark 1 is concentrated in the frame and magazine, the slide is very light weight.
Propelling the slide with the recoil forces of a 230g (15gm) .45ACP bullet moving 900fps is quite different from Green Gas pushing a 0.25gr pellet at 300fps. In round numbers the bullet is 60 times heaver than the pellet and is propelled to 3 times the velocity. A slide the mass of a M1911 in not required in an airsoft and to make it work would probably require a much larger amount of gas.
Posted 02 January 2013 - 06:39 PM
A side note: The thumb safety's retention is almost non-existent, making me have to ride the safety when firing. I am not a fan of this at all, as my S&W doesn't do this. I suppose I have to take a dremel to that to fix this problem, but at this price point, I think this shouldn't be an issue.
Posted 03 January 2013 - 07:14 AM
I helped my Mark 1 a little by drilling a detent dimple.
Posted 03 January 2013 - 07:34 PM
That's not to say the metal is denser or weaker than other "alloy" metals... I've actually seen a bb chip the slide of an M9 PTP.
Edited by Outlaw1995, 03 January 2013 - 07:40 PM.
Posted 03 January 2013 - 10:07 PM
I love the 1911 platform since it points so naturally and has a light recoil, but riding the safety kills the ergos for me. I'm at the verge of just gluing the darn thing down as I don't want to deal with it.
I figure it's an alloy featuring aluminum as it's main constituent. Taking the grips off revealed the weights used to simulate the real 1911, so it can be nothing but aluminum given the price point. I can already see parts of the frame showing bits of wear and tear, which makes me doubt the longevity of the gun. Oh well, I suppose it didn't cost all that much, so that's what I can expect out of it.
Posted 04 January 2013 - 11:17 AM
Posted 04 January 2013 - 12:08 PM
Posted 04 January 2013 - 12:50 PM
I understand your unwillingness to accept aluminum. Think of it this way, how Chuck put it: green gas is only so strong to move solid objects. You need to make sure the slide and materials used to construct these guns that blowback using a controlled gas expansion effect are light enough... if you make them heavier, then the guns will turn into non-blowback guns, and those aren't fun, now are they?
Posted 06 January 2013 - 08:40 PM
Posted 07 January 2013 - 03:55 AM
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