Magpul Masada PTS - Trigger issue

Jii · April 4th, 2011, 20:17

Hello all

Ive managed to aquire myself a Magpul Masada - flown in by the "rumors" about 10-12month break in production for factory relocation aaaand I've bumped into a trigger issue: the gun fires 40% of the time full auto bursts when the fire selector is in SEMI. No "it fires on safe" issues here. Ive tried changing the way how the fire selector gears are connected to the cut of lever but (clockwise and counter clockwise) but no luck - still fires full auto burts in SEMI.

Feels weird that after a night when no lipo connected the gun seems to work fine for 40-50 rounds ==> SEMI is SEMI not a burst of full auto fire. But when it starts to hick up its 40% change that when the trigger is pressed its going to fire more than 1BB.

So any suggestion what to do - where to get what - or where to aquire spareparts ect ?

-Juha-

sushicake · April 4th, 2011, 20:35

which brand is it, A&K or PTS?

Jii · April 4th, 2011, 20:55

Sorry forgot to mention that heh heh :-) its the PTS - Magpul Masada PTS

Kampfer · May 7th, 2011, 04:15

The Magpul PTS Masada has same internal design as the ARES's Tavor. (Same Manufacturer) Look up on how to fix the Tavor semi problem and you will find your answer.

sand/file down the selector switch because it is too thick so the mechbox shell compresses it and cause the semi auto to not function properly. Use fine hobby modeling sand paper and finish with silicon oil buff.

LocoYokoPoco · May 7th, 2011, 09:05

The sanding trick kinda works. What usually causes the problem is a weakened trigger spring. (If it's like the ARES Tavor.) After playing with the gearbox for a bit, the trigger spring can be weakened quite a bit. I find that replacing it with a V2 trigger spring works quite well. I haven't had any semi-auto issues since.

Also, an active braking mosfet is very useful as well.

Gunny_McSmith · May 7th, 2011, 13:08

get this... it's the best 55$ you'll ever spend in airsoft :P

http://www.awsairsoft.com/stealth-v2gb

LocoYokoPoco · May 7th, 2011, 20:01

If the trigger system is anything like the Tavor, that mosfet will not work.

CJay · May 13th, 2011, 17:02

it will ot fit - masada by magpul has proprietery switching unit - in actual fact its kinda the same switch that u get for the buttons on vending machines..hint hint

in fact scrap that - it IS a vending machine switch lol but i digress - standard v2 switching units will never work as the mechbox is not designed for it :P

if u look inside some of the VEEEEEEEERY old ares M4's form the first runs they did u will find the exact same design. my best suggestion is check out some ares parts for replacement - not sure about compatibillity but worth a shot maybe.

kiru · May 16th, 2011, 16:45

Is this like a hit or miss issue? I own a Magpul Masada PTS as well and I haven't ran into that issue as of yet, and the only time something like that happened was when I am putting the gun back together after rewiring the gun to deans and snapping the upper receiver to lower and the selector switch was in the wrong position going back in. But then again I probably haven't put it through enough as of yet..

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April 4th, 2011, 20:17	#1
Jii Trader rating Join Date: Apr 2011	Magpul Masada PTS - Trigger issue Hello all Ive managed to aquire myself a Magpul Masada - flown in by the "rumors" about 10-12month break in production for factory relocation aaaand I've bumped into a trigger issue: the gun fires 40% of the time full auto bursts when the fire selector is in SEMI. No "it fires on safe" issues here. Ive tried changing the way how the fire selector gears are connected to the cut of lever but (clockwise and counter clockwise) but no luck - still fires full auto burts in SEMI. Feels weird that after a night when no lipo connected the gun seems to work fine for 40-50 rounds ==> SEMI is SEMI not a burst of full auto fire. But when it starts to hick up its 40% change that when the trigger is pressed its going to fire more than 1BB. So any suggestion what to do - where to get what - or where to aquire spareparts ect ? -Juha-

April 4th, 2011, 20:35	#2
sushicake Trader rating Join Date: Dec 2008 Location: Markham, ON	which brand is it, A&K or PTS? __________________ "Don't you know the first law of physics? Anything fun costs atleast $8"

May 7th, 2011, 04:15	#4
Kampfer Trader rating Join Date: Nov 2002 Location: Vancouver	The Magpul PTS Masada has same internal design as the ARES's Tavor. (Same Manufacturer) Look up on how to fix the Tavor semi problem and you will find your answer. sand/file down the selector switch because it is too thick so the mechbox shell compresses it and cause the semi auto to not function properly. Use fine hobby modeling sand paper and finish with silicon oil buff. __________________ Op-for & BCAC clubs in and around Vancouver, BC www.MILSIG.ca Airsoft Source www.DSTactical.com Tactical Gears www.AirsoftGear.ca Parts, Accessories and Gaming Experience Last edited by Kampfer; May 7th, 2011 at 04:22..

April 4th, 2011, 20:55	#3
Jii Trader rating Join Date: Apr 2011	Sorry forgot to mention that heh heh :-) its the PTS - Magpul Masada PTS

May 7th, 2011, 09:05	#5
LocoYokoPoco a.k.a. ian209 Trader rating Join Date: May 2009 Location: Calgary, AB, Canada	The sanding trick kinda works. What usually causes the problem is a weakened trigger spring. (If it's like the ARES Tavor.) After playing with the gearbox for a bit, the trigger spring can be weakened quite a bit. I find that replacing it with a V2 trigger spring works quite well. I haven't had any semi-auto issues since. Also, an active braking mosfet is very useful as well. __________________ World record in propane sniffing. Armory -KWA Tavor TAR21 GBBR -TM PX4 w/Detonator Aluminum Slide

May 7th, 2011, 13:08	#6
Gunny_McSmith a.k.a. Palucol Trader rating Join Date: Mar 2008 Location: MTL	get this... it's the best 55$ you'll ever spend in airsoft :P http://www.awsairsoft.com/stealth-v2gb __________________

May 7th, 2011, 20:01	#7
LocoYokoPoco a.k.a. ian209 Trader rating Join Date: May 2009 Location: Calgary, AB, Canada	If the trigger system is anything like the Tavor, that mosfet will not work. __________________ World record in propane sniffing. Armory -KWA Tavor TAR21 GBBR -TM PX4 w/Detonator Aluminum Slide

May 13th, 2011, 17:02	#8
CJay Trader rating Join Date: Oct 2008 Location: Belle River, ON	it will ot fit - masada by magpul has proprietery switching unit - in actual fact its kinda the same switch that u get for the buttons on vending machines..hint hint in fact scrap that - it IS a vending machine switch lol but i digress - standard v2 switching units will never work as the mechbox is not designed for it :P if u look inside some of the VEEEEEEEERY old ares M4's form the first runs they did u will find the exact same design. my best suggestion is check out some ares parts for replacement - not sure about compatibillity but worth a shot maybe. __________________ "Creator of the Zombat Sniper - oh yeah baby"

May 16th, 2011, 16:45	#9
kiru Trader rating Join Date: Apr 2011 Location: Markham, ON	Is this like a hit or miss issue? I own a Magpul Masada PTS as well and I haven't ran into that issue as of yet, and the only time something like that happened was when I am putting the gun back together after rewiring the gun to deans and snapping the upper receiver to lower and the selector switch was in the wrong position going back in. But then again I probably haven't put it through enough as of yet..

Magpul Masada PTS - Trigger issue

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