In terms of upgrades you've listed, I'm not really seeing much that'll drastically increase your fps from stock. From what you said, you're sitting roughly where you should be.

Single highest FPS upgrade is usually the 6.01 barrel, which has its own drawback...aside from that, you also get significant gains from longer barrel, but that also is not necessarily what you want in all the builds.

so my setup is shooting fine then?

Seems like that's your answer...

IMO 6.03 barrels don't really do all that much for FPS gains. I'd guesstimate that that sounds right, though I don't really have the experience with those Hi-Capa parts.

if you really want more power, you'll need to switch out your floating valve to a heavier one, and maybe one with the o-rings, and you could try the nineball purple hop up. Only problem we've found with that is its oversized and your hop up unit won't close flush, but doesn't seem to affect usability.

Increase the strength of the sear prong on the leaf spring. If it's too weak, it will not allow the sear to engage the hammer hooks fast enough.

Those readings look low. You should be hitting MINIMUM 310fps (with 0.25g BBs) if everything else is stock and the KM "HIGH FLOW" valves are installed. Never heard of cylinder bulbs made by KM that go in the magazine... so I'm assuming you meant high flow valves.

What hammer spring are you using? You SHOULD be using a stronger one if you're trying to crack open a high flow valve under propane pressure.

Yes, sorry Brian, its the KM High flow valve... I got mixed up. Yeah I know my readings are low thats why I was a bit concerned. If I recall correctly, I think im using the Guarder 150%. My issue might be caused by the mag sitting too low in the grip because I can move it up by a few millimeters. Ive got the nine magazine catch so I might try the stock catch and see what happens.

Besides this solution, would you suggestion anything else?

Thanks.

Which is the sear spring?

I've tried bending the far right and middle springs. The right one seemed to make the most difference, but the problem will still occur if I hold the gun upright, or even occasionally when its level.

About what angle would you say the sear pron should be at relative to the lower (stiff) portion of the leaf spring?

If you push the mag up, does the velocity increase?

I've used the 9Ball mag catches for a while, and haven't had any problems with them. You'll have to physically inspect both the mag catch as well as the notch in the mag to check for any rounding. Any major wear will prevent proper seating of the mag, and if there is, I would recommend tossing the part.

Also check the seating between your grip and your frame. Some loose setups will allow the grip to sit too far away from the frame, and thus, the mag will sit too far away from the nozzle, causing a poor seal.

I said sear PRONG on the leaf spring (the right most one). It looks like you already figured it out... you should be trying to move that one.

Secondly, check for wear on the hammer hooks. Did you mod them in any way?

I can't suggest an "angle" for the prong, as each setup is different.

Yea I told him about this but he also has problem with the stirrup when the grip screws are tighten. I'll be heading over to see if I can help. :)

Actually, i just realized that sometimes my slide catch doesnt work. I tested the magazine spring and it seems to be fine...Can this be attributed to my low FPS? Do u think that the gas is seeping out somewhere causing insufficient gas to blowback the slide, and hence, the slide doesnt catch at the notch?

Hey gents, does anyone know if I could fit 1911 internals into a Detonics frame?

What parts are the hammer hooks?

I've replaced the grip with a Tanio Koba one, the sear spring with the Airsoft Surgon one, and the hammer parts with this kit:

http://www.redwolfairsoft.com/redwol...5_1_Type_5.htm

The hammer goes all the way most of the time when fully upright after bending the prong, but if I lean it to the right (relative from the shooter), it will just release into a half cock.

I've been trying to find some silicon oil spray that doesn't have any petrolium distilates for the past few days to see if increased lubrication fixes the problem, but I just can't find any.

It may or may not be a problem. I've seen this several times, and never has it been related to magazine height or seal issues.

That depends on which 1911 variant you're putting in.
Also, the hammer strut from any 1911 variant will not fit in to a Detonics.

They're the two "hooks" on the hammer - it's where the sear catches.

I've seen some instances where an improper installation of grips to frames (either a loose installation, or through wear of those parts over time) causes the frame to sit further away from the grip than it should. The result is the the sear sitting too high, and getting caught on the middle prong of the leaf spring - this can create temporary or permanent full auto fire until corrected.

Forget about looking for silicone spray. Look for a GREASE. I recommend Super Lube for something generic, but if you can't even find that in your area, you should have ready access to Lithium grease, which should work as well.
OIL will do very little for lubrication of metal-on-metal applications.

I've found that stripped grip screw holes can also cause the grip to sit too low, resulting in low fps.