Airsoft Gas Blowback, Shell-Ejecting SPAS-12 Custom Build

A custom project that began eleven years ago, splicing the internals of an airsoft Maruzen M1100 to the externals of a Tokyo Marui SPAS-12, with a few donor parts from other manufacturers. HPA-powered, shell-ejecting, 9-BBs-per-shot, one of a kind.
Music by Karl Casey @ White Bat Audio.

[@WeasleFireable]

Absolute mad lad repping the HECU cosplay alongside with it.

[@linksadude1]

That made me so damn happy

[@johnson3997]

''my ass is heavy freeman''

[@knowtheplan472]

With the HECU outfit too??? You never fail to have excellent taste!!!

[@gyozo9567]

that kid was you????

[@justinlapid2163]

Ikr? I remember that video of him in that dark room shooting the spas hehe. I think he got mentioned on US Airsoft's channel

[@AleksWorkshop]

Incredible stuff man!

[@jamesmuse1859]

Something like this deserves some attention from major Airsoft companies

[@crewgadjy]

Amazing work mate. Its remarkable that no manufacturer has made a modern SPAS. Its right up there with a decent mk2 Browning and a 6mm GBB Bren 10 on my wish list. Hopefully TM will eventually get round to inserting there modern mechanism and construction methods to give us the ultimate metal airsoft shotgun.

[@BadaBingPictures]

Great video and a great custom build. Good work, as always. I had a Maruzen 870. And collecting the shells is absolutely as bad as people say! 😅 I found it extremely tiresome to sweep the site for shells after a single game. Never again. Performance was gash too, so that likely added to my aggravation.

[@Mamaxabras]

That Opposing Force outfit though, damn

[@TheHelghast4life]

Always glorious to see old builds see some new life. Glad to see this one has been revived from the days of Hazardous Containment 4 at Penn Yan.

[@willisheung1083]

That was a great attempt ! Glad it worked out this time round. I too have a Marui spas12 with a Maruzen m1100 internal, but my maruzen is the rare mag fed one without using shells though.

[@ZacharyBurgard]

This man need to get hired as a designer for airsoft guns

[@AWPtical800]

Back when I had a CAM870, I was one of those nerds who really worried about losing shells, especially when SMART shells are over $10 a pop. Shell catchers did the job though, and I still feel that retention outweighs the loss in aesthetics of having a bag hang off your gun.

[@subsyairsoft]

Lovely vid Sir! Great bit of dedicated work! Mostly, thanks for demystifying the shell ejecting vs pure fun risk assessment! Looked great and as you say, I bet it’s got great game presence and makes you smile when every trigger pull releases a bb cloud and the shell hits the floor! Excellent Teching!

[@ThePingasMightier]

Great looking gun, and also - this is an incredible HGrunt cosplay!

[@terryflaps4492]

So glad he didn't quit on this

[@nachgebaut4176]

Thats really amazing, im working on my own Shotgun gbb project and you gave me some motivation to keep working on it mate :)

[@hiphip4808]

So this is a pretty old reference, but honestly you remind me of RapidNadion, but for airsoft, you talk just like him, including talking about your group, you have the same cadence and almost the same voice. Its honestly really cool. You guys also modify and make cool stuff, just like Rapidnadion did. Overall its just a fun quirk I noticed and its really cool.

[@weebfishing5439]

I had no idea that was you. I was in the orignal face punch thread back in the day and absolutely was amazed at what you did with that m1100

[@TehG3A3]

IFAP never dies!

[@minigunner9060]

I you were going to go for a true select fire system, easiest way might be to just integrate some form of gas cutoff when moving the pump from the semi auto position to the pump position

[@SodaOgre]

As always it's a joy to see your work, really great bit of engineering. I've been playing with the idea of using a TM Spas as a body kit for a Jag Arms Scattergun since I only play in woodland and collecting spent shells after a match would be.... problematic.

[@ComfortsSpecter]

Going Deep and Hard in Black Mesa

[@simoncereceda4908]

Absolutely amazing dude, love these types of projects!! would be cool to make and sks!

[@ViceMightBeTaken]

i love the HECU outfit

[@realwartortle]

I literally did HECU larp with the m40 gas mask, luckily the outserts didn’t break, it held a lot of shots in airsoft

[@sogerc1]

I was starting to get excited... but then I saw the ghostbuster line. Sorry for being brutally honest, it's must've been a lot of work. I wonder if we'll ever see an actual convertible airsoft shotgun.

[@richielee5398]

That's a nice build. I'm just surprised that no firm has made a good model of one that works. It's probably the most used in films etc. Keep up the great work.

[@sirorlandodecorsica6210]

Thoroughly impressed!

[@LoneWolfPrecisionLLC]

Let me know if you need any cnc machined parts for these custom builds. I own a machine shop in the US and id love to help bring your projects to the next level

[@dpchief_216]

How much would your shop charge for something like, say a custom hand guard? I have some designs that I’ve been 3d printing lately

[@GTR10th]

that is truly a work of art

[@W0nk0Th3San3]

Reminds me of my M1014 conversion, which eventually just ended up in a trash can once the shell lifter snapped into 2.

[@magaz]

Holy shit. I remember that video! That was a blast from the past. Edit: just got to the part with the Sheriff spas. Only a few dozen in the world!? I have a friend who bought one way back in the early 2000s and sadly let it go.

[@MrBoba-pk7be]

🔥🔥🔥🔥Absolutely love your work, man

[@michaelwolfe1771]

Earned a sub from me, this channel is seriously underrated.

[@rywiotyme232]

For the swapping of fire modes i think the easiest option is to have two interlocking hooks on the action arms and the corresponding arms of the pump, and pressing the button pushes the pump arms upwards unlatching them. although i don't think it'd be a good idea to fire in "manual"

[@TristenTheArgonian]

I'd love to try and do something similar with a Cam870

[@sesfilmsllc]

THAT WAS YOU?! Goddamn!

[@giganotosaurusmaximus562]

0:01 OMFG IS ADRIAN SHEPHARD

[@sixshootersquid]

amazing video all around, cant wait for more !

[@ShogunMongol]

Just a heads up, that filter you have on that mask is a C2 filter, which is known to contain chromium in the filtering medium, now it isn't a huge concern, definitely overblown by a lot of people, but I'd recommend you get a C2A1 filter, the green bodied version of what you currently have. Also, I'm not certain on the ballistic capacity of those tinted M40 outserts, I believe they're alright, but stay safe.

[@ExplosiveEnterprises]

We sincerely appreciate the concern, but to be clear, the filter is a hollowed-out dummy fitted with a powered intake fan. The tinted M40 outserts are /not/ ballistic, though the lenses have been replaced with polycarbonate- regardless, we do not use or recommend the use of gas masks for airsoft. It's just a fun costume.

[@ShogunMongol]

@@ExplosiveEnterprises Gotcha, that's good to hear, although I will disagree, airsofting in a gas mask is loads of fun with the right mask, the MCU is perfectly safe and I use it quite a bit, holding up pretty damn well.

[@Atomicus_]

@@ShogunMongol damn right, love sporting my s10 gas mask with airsoft proof outer lenses for my HUNK build.

[@spectrumforthesoul6322]

How the heck did you know ONE YEAR PRIOR, that i was looking this up PRECISELY to use with a HECU cosplay

[@GB58389]

RECON GO!

[@SheepDoesStuff]

Nice intro I love the HECU outfit

[@halo-cn3ku]

It’s beautiful 🥲🥲

[@mbxfacex2447]

Great job!

[@silverlyder]

Nice work

[@Cheezwizzz]

Amazing job 😮

[@ANachtmere]

As an owner of a Sheriff SPAS i can correct you to say its a PV or push valve system and affirm your build choices because the Sheriff is a very expensive flimsy turd

[@HalfLife2Crowbar]

HELL YEAH! HECU LARP!

[@kdogjcgdad2325]

Love the video could you do a conversion video like this on the Benelli m4 like the ùtg m3l

[@Michaelanthony24680]

Someone really needs to make an m1014/ Benelli m4 airsoft clone.

[@bonlappen3000]

Im thinking about making the aps cam870 to semi auto. Not shooting semi auto you have to pull the charging handle back every shot but it would be cool, mill the frame with probably 7-8mm endmill and making a spring that pushed the pumps forward, ill post it on my yt channel if i ever do it

[@aaron4820]

Incredible work as always. I've been dreaming of someone creating a (presumably HPA) RareArms SR25 based Gen12 that uses APS shells, alas that thing is entirely discontinued and very low production to begin with.

[@dennismetzger9287]

APS shells in a rifle?

[@StorMRagE4EVA]

THAT WAS YOU!!!!

[@Hondurez7]

🤪 clever girl. seriously, very nice.

[@KuRo88]

I was always thinking of doing something like this to my tm spas, but with cam 870 Internals.. But they are very expensive over here and I would be sad to destroy 2 perfectly good guns for it to maybe not even work right..

[@yooHooLagger]

omg it was you

[@netshark993]

What about a CAM 870 as a base for a pump only spas-12?

[@Terminatorbart]

Cool!

[@Fuzzyhead16]

cant u just 3d print the shells from PLA wich then disolves in nature like normal bbs?

[@g.p.airsoft]

With all due respect, HPA was a deal breaker for me. But I Loved it anyway. Congrats, the gun looks amazing and the video is awesome. Quick question tho. Can you make it manual pump?

[@adiamond563]

can you do a vid on the M16A1 you have?

[@king124kine]

Could you 3d print shells?

[@gabecollins5585]

Why does no one make semi auto or automatic shell ejecting shotguns for airsoft that are for sale?

[@skinskinner]

the hecu cosplay!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@porker2906]

A W E S O M E ❣️

[@iamapineapple8456]

I wanna tutorial for this now. Fuckin cool

[@gunbuckybucketman4578]

Adrian Shephard*

[@FonuhYT]

🤓

[@gunbuckybucketman4578]

@@FonuhYT Got roasted by a Fnaf fan, seesh!

[@FonuhYT]

@@gunbuckybucketman4578 bruh💀

[@gunbuckybucketman4578]

@@FonuhYT -100 aura ur ur ur skibbidi am I right?

[@FonuhYT]

@@gunbuckybucketman4578 what💀

[@AttilahsTube]

wow cool!...now convert it into an actual spas

[@jpisback]

Have you thought about making it a gas/CO2 with the chamber in the hand grip?

[@michagromek6342]

Pls convert "Lehui Toys Beretta 1301 Tactical shell ejecting Electric Semi-Auto Shotgun" to airsoft ... Should be simple mod.

[@dovahthedeaf9640]

Nice! I was going to but the m1100 but its hard to find shells for it, is it possible to make shells for it? And how do you hpa tap the shotty?

[@Mcfiiendz]

Do you think you could review the VFC Mk17 gbbr

[@GTR10th]

I assume if he picks one up hopefully he will! I've been running one for the last 6 months, when I was debating picking one up though I have to say there's really no good reviews of it on YT rn

[@hokceygoon41]

How much would you sell it for? $$$ I’ll buy it from you since your the builder blueprint expert 😁

[@regimes]

Oh look its only the most sought after airsoft shotgun in the history of airsoft. My jealousy cannot be described.

[@dennismetzger9287]

So the idea was simple, just find an already hard to find airsoft shotgun and completely rework it lol

[@nigel_pisswater69420]

freeman yore dead

[@chinoyomaji288]

So im gonna be that guy. Can i just send you guys my spas-12 to get all these mods done to it, im no professional at modding and i want to do something with my spas instead of leaving it stock and running it until something inside died.

[@stewbacca117]

Severe. Want. 🤔😍🍻🤗

[@PulsefiredGaming]

APS base gun would be easier to replicate

[@caboose8110]

Half life

[@nickdickem]

I wonder if you could take an APS CAM-87 and fit it with the Marui SPAS furniture for a good shell-ejecting pump-action SPAS-12, it's really a crime that there aren't any good options on the market