Quote:
Originally Posted by Scopedog
No worries. It's my first clone GBB, all my others are TM.
I did try one of my TM 1911 mags and although the performance was better it was still barely able to make 10 rounds before running empty. This would lead me to believe that the seal between the magazine and loading muzzle is at least part of the issue. Although, I assume there's more to it than that.
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Is there any weakness in blowback strength?
Quote:
Originally Posted by Scopedog
I do have another question though, it pertains to the hammer spring. What purpose does an upgraded one serve, and when should it be used?
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An upgraded hammer spring provides a deeper and more reliable strike against the valve knocker, and thus, the gas release valve on the magazine.
An upgraded hammer spring is required if you use magazines containing gasses at higher than spec pressure. Keep in mind, that most (all) guns of Japanese origin are originally built to run on duster gas. Therefore, putting in propane gas already increases the amount of force against the valve, and likewise, requires greater force to crack it open. The problem is exacerbated if the magazine is allowed to come to rest at a relatively high ambient temperature, for example, sitting by a windowsill on a hot sunny day or just running around at a skirmish on a blazing hot and humid 40 degree day. Basic gas physics: at higher temperatures, gas vaporizes faster - in other words, the pressure increases if it is contained. In such a situation, many users may have experienced a dead fire when inserting a hot propane mag in to their gun and pulling the trigger, only to hear a *click* with no action occurring.
A weaker example of that is when the first shot you fire seems extremely weak... velocity is low, blowback power is weak, but as you fire more and more, the velocity and blowback power increases. This is part of the cooldown effect - as the gas expands, the liquid cools and as the unit cools, the pressure decreases, allowing follow up strikes to break the valve with greater ease.
This can be resolved by using a stronger hammer spring to ensure a reliable strike when the pressure on the valve is too high.
Players who rely on their pistol to work when it needs to work, are best to install a stronger hammer spring if they are using ANY gas stronger than duster.