my airmax CM1 bullpup Build thread ( the start anyway)

[Rob M]

Well , ill let the pics explain.. Ive had a rough idea of where things are going.. still have quite a bit of work to do with kydex side panels , relieving the trigger area, not to mention sanding , painting , a shroud, possible Hpa drop block , and the list goes on.. Lotta delays along the way , and I'm betting it will be after the holidays before I get further.. I think the gun looks better in person , but I never claimed to be a photographer.
20171211_130149 by murphyrobert9, on Flickr

don't know if it will all be chronological .. But its been a few weeks with shipping delays and blowing the belt on my mill

20171215_131321 by murphyrobert9, on Flickr

putting a 875 hole through 4 inches was fun ..

20171213_164233 by murphyrobert9, on Flickr

so was hogggin the trigger hole

20171215_140328 by murphyrobert9, on Flickr

I guess at this point , you can see where this was going .. both barrel and airtube needed to make a complete pass through


20171222_111117 by murphyrobert9, on Flickr

lots of sanding and breaking edges in my future..The trigger group needed a relief for future trigger linkage


20171221_153537 by murphyrobert9, on Flickr

after this there was a third hole added ( .437) where my trigger piston assembly would be installed.

20171222_072340 by murphyrobert9, on Flickr

the toiling continued.and the trigger needed to be sorted.

20171222_115747 (1) by murphyrobert9, on Flickr

this is the linkage rod, 1/8th brass which needed to be theaded to connect to the trigger piston
20171222_102032 by murphyrobert9, on Flickr

Now I was cooking with gas, weaver rail completed ..the goal was to get the main reviever done , but I also needed to keep a square reference point which I decided would be the trigger guard area.. So that wont be reduced to the grip width till a later date

20171222_102121 by murphyrobert9, on Flickr

naturally I needed some sort of trigger.. the trigger is riding in a slot on the piston I mentioned earlier that's threaded to the brass rod


20171222_113854 by murphyrobert9, on Flickr


in this pic , I shorted the valve retention screw, and really need an rc ball bearing but got the trigger working pretty smooth.. Need to lube the channel in which the piston rides, and adjust the offset of the trigger blade.. Its never ending lol


20171222_151645 by murphyrobert9, on Flickr

I guess when I started , I imagined this all happening in 1 day.. the amount of work on the main receiver alone is more than a project


So I started working rearward,.,. the rear tube plug was replaced with turned down 1 " aluminum , flats on both sides for later mounting locations for the kydex.. and the one main post that goes through the cap , up into the breech locking the entire rear end together making the stock super rigid


20171223_174026 by murphyrobert9, on Flickr

20171223_192030 by murphyrobert9, on Flickr

it just keeps going , hope you like pics, this may be excessive.

20171223_193340 by murphyrobert9, on Flickr

20171223_193309 by murphyrobert9, on Flickr

so next is the black kydex side panels , mexed with 1/16th aluminum plate guarding the linkage/... More fine tuning and adjustment on trigger.. sanding painting , god knows what else.. feel free to share thoughts.. probably be after new years before I have more poics


20171223_192252 by murphyrobert9, on Flickr



20171223_211622 by murphyrobert9, on Flickr

[redlined_b16a]

Too much awesomeness in one Post!

[SilentMatt]

Looks good!

[WesBob]

Great work!!

[Rob M]

thanks guys , SO FAR, so good , lotta work left to do.. ill be adding pics as I go

[Wayne52]

Very nice !!! I'll be following

[Rocker1]

Good stuff Mr Rob. don't count the time lol!!!   David

[mcoulter]

Wow!   Just awesome!

[Xraycer]

Awesome!!!!!

[Rob M]

Good stuff Mr Rob. don't count the time lol!!!   David

thanks David , if I counted the time I could have bought an Indy lol.. otherwise , 99 bux so far.


as a side note for people messing with airmax guns , some tape on those tiny tiny trigger pins goes a long way while working , when they fall out , good luck finding them (-'

[Bob Pratl]

Good stuff Mr Rob. don't count the time lol!!!   David

thanks David , if I counted the time I could have bought an Indy lol.. otherwise , 99 bux so far.
as a side note for people messing with airmax guns , some tape on those tiny tiny trigger pins goes a long way while working , when they fall out , good luck finding them (-'

Time is relative, the real pleasure is a finished project of your own design that works, which I'm sure it will. Very nice and rewarding project.

[WesBob]

+1 on the tape for the trigger pins!

[Rob M]

minor update , now keep in mind this will be mostly covered by the kydex side panels.. so most likely all that will be seen is the bottom grill.. I'm certainly no sheet metal fabricator/ bender, so this took half the day


20171224_154702 by murphyrobert9, on Flickr

20171224_155610 by murphyrobert9, on Flickr

the gun will gradually look more balanced as things are added ( I hope

20171224_155636 by murphyrobert9, on Flickr

20171224_160234 by murphyrobert9, on Flickr

anyway, time to do some work on the main receiver, add a shroud /ldc .. and shape the kydex which is something ive never done..

[Rob M]

and one pic for scale , that's 12 inches on the tape.. figure shroud will be another 6


20171224_161058 by murphyrobert9, on Flickr

[Efrobert]

Wow!

[.]

Holy Moley, Rob!

That is outta this world!!! 

[WesBob]

Looking so good Rob!! Great work! You are an artist!

[Rob M]

thanks Ted, Wes and Chickie.. its really coming down to all cosmetics, I aim not to disappoint.. I'm just making stuff work , hoping the looks follow suit.. the kydex is a cool textured black , so more to come

[Rob M]

started cutting and mounting the kydex panels /./. they still need to be heat gunned and formed around the gun ..


20171226_164529 (1) by murphyrobert9, on Flickr

also did some chamfering around the trigger , much smoother/.

20171226_121251 by murphyrobert9, on Flickr

anyway , I don't like the kydex as is , but maybe after its heat formed I will.. I figured having it mounted will create the most accurate results as far as forming goes.

20171226_165843 by murphyrobert9, on Flickr


don't be too harsh , if you have an idea about slotting or making the kydex fancier , share ! after this the receiver will go off to poor mans powder coating .

[WesBob]

Nice! That looks great imo☺️