Mechbox Review - Lonex drop-in mechbox

SixthFall · August 19th, 2013, 21:34

Hey, did the tappet plate issue get fixed? as my gun is having feeding issues, but i havent figured out if its the hop up, or the lones tappet. Also, whats you guy's compression like on the drop in boxes? i tested it, and it seems to be subpar (sealing the nozzle and pushing piston into cylinder)

Stealth · August 19th, 2013, 22:11

Quote:

Originally Posted by SixthFall

Hey, did the tappet plate issue get fixed? as my gun is having feeding issues, but i havent figured out if its the hop up, or the lones tappet. Also, whats you guy's compression like on the drop in boxes? i tested it, and it seems to be subpar (sealing the nozzle and pushing piston into cylinder)

As far as I know it's been fixed. The issue was really obvious.

Unhook the spring and turn the sector to pull the tappet plate back. If it gets pulled all the way backwards so that the face touches the cylinder, then you're good to go.

390fps sounds right for the box. I did notice the recent boxes getting a generous amount of piston head grease. Get rid of the excess and clean the cylinder with some dish soap. You should get a decent seal after.

BTW they're testing EVERY single one of these boxes at factory- something that wasn't done before.

SixthFall · August 19th, 2013, 23:28

Quote:

Originally Posted by Stealth

As far as I know it's been fixed. The issue was really obvious.

Unhook the spring and turn the sector to pull the tappet plate back. If it gets pulled all the way backwards so that the face touches the cylinder, then you're good to go.

390fps sounds right for the box. I did notice the recent boxes getting a generous amount of piston head grease. Get rid of the excess and clean the cylinder with some dish soap. You should get a decent seal after.

BTW they're testing EVERY single one of these boxes at factory- something that wasn't done before.

Ill try that, thks. Just ordered a new piston and piston head, as i blew the one that came with the box up (pre engagement) using a 11.1 lipo. time to break out the drill i guess

SuperHog · August 24th, 2013, 13:47

I am going to replace the gear box in my one of my G&P and VFC. Does the Lonex drop into these without mods?

Stealth · August 24th, 2013, 19:22

Yes.

Rabbit had to remove the rubber pad at the back of the lower receiver.
The Lonex shell is actually cloned off a VFC mold sooo yea.

K3vX · August 24th, 2013, 19:33

Quote:

Originally Posted by Stealth

Yes.

Rabbit had to remove the rubber pad at the back of the lower receiver.
The Lonex shell is actually cloned off a VFC mold sooo yea.

I thought you were on vacation.

SixthFall · August 24th, 2013, 20:08

well, just put a lonex m4 hop up in my 416, but now i seem to be getting less than 300 fps instead of the 380 i was getting before (lonex sp120 box with sorbo). perfect seal on the piston side of things, and the hop up is seated in the mech box correctly (i switched buckings from a 70 hardness to a 50, but it doesnt seem to have made a noticeable difference). Any ideas?

Stealth · August 25th, 2013, 22:42

Are you using a new barrel group or your old one in the 416?

As you've probably surmised, you have an airleak...somewhere. I suspect it's between the nozzle and hop-rubber/unit.

SuperHog · September 23rd, 2013, 22:52

Will Lonex produce a V2 gear box for easy spring change out?

Stealth · September 23rd, 2013, 23:27

No. For the simple reason being that by the time you get to the part where the rear is exposed, you may as well open it up the normal way.

The only benefit of "quick-change" gearboxes are in guns where the rear of the mechbox is accessible without removing the mechbox. (ie: A&K M249, PTS PDR-C)

As for the ones currently floating in the market, I have yet to see a quick change gearbox executed properly with the correct dimensions and specifications.

SuperHog · September 24th, 2013, 00:05

What is the weight of the PTW Dytac UXR 4 13" in grams?

Rusty Lugnuts · September 24th, 2013, 06:52

The only benefit of "quick-change" gearboxes are in guns where the rear of the mechbox is accessible without removing the mechbox. (ie: A&K M249, PTS PDR-C)

Sorry my friend but putting the mechbox together without the spring is much easier

lurkingknight · September 24th, 2013, 09:55

this much is true... but some really nice mechboxes don't get all squirrelly when you have the arl or trigger in so you don't need spider hands to keep them in. A vfc gearbox you can put everything in the half and pull your hands away and nothing comes flying out.

Stealth · September 24th, 2013, 10:12

Let me elaborate further - when are you in a situation where by the time you expose the rear of the mechbox (in the case of an AR15 platform - when you have the mechbox completely removed) where you would want to ONLY swap springs? I'd imagine any competent or diligent gunsmith would want to open up the mechbox to inspect the internals for wear and re-lubricate the mechbox at that juncture. Especially if you've spent the time in removing the mechbox - which in some cases such as ambidextrous-controlled bodies (VFC KAC series) is actually more work than opening the mechbox itself.

Having said that, I recognize that there are now metal bodies which allow the rear of the mechbox to be accessed - but so far they have been very poor executions of the idea with janky dimensions and markings.

Stealth · September 24th, 2013, 10:16

On another note - all current Lonex drop-in mechboxes are now shipping with the Extreme Toughness piston.

We've tested this piston up to 565fps @ 25rps. Yup, so if you're blowing up your Lonex red piston - you're doing something wrong.

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September 24th, 2013, 09:55	#148
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	this much is true... but some really nice mechboxes don't get all squirrelly when you have the arl or trigger in so you don't need spider hands to keep them in. A vfc gearbox you can put everything in the half and pull your hands away and nothing comes flying out. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.

September 24th, 2013, 10:12	#149
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	Let me elaborate further - when are you in a situation where by the time you expose the rear of the mechbox (in the case of an AR15 platform - when you have the mechbox completely removed) where you would want to ONLY swap springs? I'd imagine any competent or diligent gunsmith would want to open up the mechbox to inspect the internals for wear and re-lubricate the mechbox at that juncture. Especially if you've spent the time in removing the mechbox - which in some cases such as ambidextrous-controlled bodies (VFC KAC series) is actually more work than opening the mechbox itself. Having said that, I recognize that there are now metal bodies which allow the rear of the mechbox to be accessed - but so far they have been very poor executions of the idea with janky dimensions and markings. Last edited by Stealth; September 24th, 2013 at 10:15..

August 19th, 2013, 21:34	#136
SixthFall Trader rating Join Date: May 2012	Hey, did the tappet plate issue get fixed? as my gun is having feeding issues, but i havent figured out if its the hop up, or the lones tappet. Also, whats you guy's compression like on the drop in boxes? i tested it, and it seems to be subpar (sealing the nozzle and pushing piston into cylinder)

August 24th, 2013, 13:47	#139
SuperHog Trader rating Join Date: Jul 2011 Location: Toronto, Ontario	I am going to replace the gear box in my one of my G&P and VFC. Does the Lonex drop into these without mods?

August 24th, 2013, 19:22	#140
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	Yes. Rabbit had to remove the rubber pad at the back of the lower receiver. The Lonex shell is actually cloned off a VFC mold sooo yea.

August 24th, 2013, 20:08	#142
SixthFall Trader rating Join Date: May 2012	well, just put a lonex m4 hop up in my 416, but now i seem to be getting less than 300 fps instead of the 380 i was getting before (lonex sp120 box with sorbo). perfect seal on the piston side of things, and the hop up is seated in the mech box correctly (i switched buckings from a 70 hardness to a 50, but it doesnt seem to have made a noticeable difference). Any ideas?

August 25th, 2013, 22:42	#143
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	Are you using a new barrel group or your old one in the 416? As you've probably surmised, you have an airleak...somewhere. I suspect it's between the nozzle and hop-rubber/unit.

September 23rd, 2013, 22:52	#144
SuperHog Trader rating Join Date: Jul 2011 Location: Toronto, Ontario	Will Lonex produce a V2 gear box for easy spring change out?

September 23rd, 2013, 23:27	#145
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	No. For the simple reason being that by the time you get to the part where the rear is exposed, you may as well open it up the normal way. The only benefit of "quick-change" gearboxes are in guns where the rear of the mechbox is accessible without removing the mechbox. (ie: A&K M249, PTS PDR-C) As for the ones currently floating in the market, I have yet to see a quick change gearbox executed properly with the correct dimensions and specifications.

September 24th, 2013, 00:05	#146
SuperHog Trader rating Join Date: Jul 2011 Location: Toronto, Ontario	What is the weight of the PTW Dytac UXR 4 13" in grams?

September 24th, 2013, 06:52	#147
Rusty Lugnuts Fainting Goat, Dictator of Quinte West Trader rating Join Date: Nov 2011 Location: Cobourg Ontario	The only benefit of "quick-change" gearboxes are in guns where the rear of the mechbox is accessible without removing the mechbox. (ie: A&K M249, PTS PDR-C) Sorry my friend but putting the mechbox together without the spring is much easier

September 24th, 2013, 10:16	#150
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	On another note - all current Lonex drop-in mechboxes are now shipping with the Extreme Toughness piston. We've tested this piston up to 565fps @ 25rps. Yup, so if you're blowing up your Lonex red piston - you're doing something wrong.

Mechbox Review - Lonex drop-in mechbox

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