Makasi Canada Non Restrcited Rifle: A machinist tear down PIC HEAVY

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Brigade Arms Makasi Canada Non Restricted Rifle - A machinist tear down PIC HEAVY

Just got home with my rifle from RDSC. I have not fire it yet, this is a construction and design review only!

Disclaimers: I purchased this rifle with my own money and I have zero affiliation with anyone involved with the rifle.
Qualifications: I'm a red seal journeyman machinist operating a CNC machine shop primarily producing items for electro optical devices. In the past, I was involved in the firearms manufacturing industry.

Initial impressions: This thing is the best option for an AR15 style rifle we have. Go buy one now before you can't. Any issues can be easily remedied by the Canadian aftermarket. There is nothing out of this world difficult in the manufacture of this rifle.

full_rifle.jpg

The factory stock is a beast and heavy. I replaced it immediately with a B5.
full_rifle_B5.jpg

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The handguard mount leaves a bit to be desired. The bolts screw into regular hex nuts that sit in machined pockets on the other side. Very robust design and easy to replace if some CGN moron strips out the bolts. The handguard is slotted for a small amount of squeeze, but primary retention appears to be the bolts interfacing with grooves in the barrel nut. They have already chowdered it a bit. For this reason, I'd have preferred shoulder bolts. I have 2 on order, McMaster part number 91273A587

I have a large diameter Aero Precision handguard that I think I can make fit with a custom barrel nut.
hg_mount.jpghg_profile.jpgbbl_nut.jpg
bbl_nut_width.jpg

Thankfully, as it basically uses a chopped AR15 bolt and carrier, standard action wrenches will work. Barrels are, as far as I can tell, standard AR15 with a carbine length gas system. This gun can be re-barreled easily.
barrel_mount.jpgaction_rod.jpgbolt_assy.jpg

The gas block is a very simple design. I will take mine off eventually and reverse engineer it. I do seem to have a fit issue with my gas plug. There are burrs or a size miss match that makes switching to suppressed sticky. I hit it with the honing stone a bit. It will probably wear in. (picture before any fix)

gasblock.jpg
 
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The magwell is of the drilled corner and fully milled type. Not wire EDM or broached. This is not a negative. It is the most economical way to produce the AR15 type mag well in low volume.
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I'm not really a fan of the clipped magwell but I understand the FAL aesthetic they are going for.
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Reciever has a sacraficial bolt buffer screwed into the back. Appears to be acetal plastic.
buffer.jpg

Fire control group pocket is of standard AR15 type and should fit all aftermarket triggers.
FCG_pocket.jpg

The only visible machining marks I saw were on the side of the magwell. A total non-issue to me.
tool_marks.jpg
 
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Greatly appreciated pics and thoughts! My initial thoughts seeing the rifle being released is the same conclusion as yours where everything can be fixed. I spoke with another user on Reddit to compare the gas system with the Superlative Arms piston kit and while they weren't compatible out of the box due to a height difference, I think with just a bit of work it would be (just need to mill the op-rod hole in the upper a bit and make a new strike surface key). Then we could use whatever AR15 barrel we want in whatever length we want and maybe remove one of the recoil springs because we can now tune the gas and increase reliability. Let me know your thoughts on that!

Also, can you do a quick measurement of the picatinny rail on the receiver, on the handguard, and also the mlok slots on the handguard? Would be good to know if they've fixed those being out of spec previously.

Also just saw that they started factory staking the strike surface key screws (not very good staking and still smooth screws instead of knurled ones though). But a good change to start.
 
Initial impressions: This thing is the best option for an AR15 style rifle we have. ... Any issues can be easily remedied by the Canadian aftermarket. There is nothing out of this world difficult in the manufacture of this rifle.
This. The reason why I deliberately went with MK15 pre-order and not with better made out of the box and coming from reputable manufacturer Carmel (still ugly!). Also Carmel has a stupid design, essentially a plastic shell to make bull-pup action look like traditional setup. Too much plastic, plastic overdose.
 
Then we could use whatever AR15 barrel we want in whatever length we want and maybe remove one of the recoil springs because we can now tune the gas and increase reliability.
You would be getting into timing and pressure/energy changes. Only latter can be address with bleed-off feature of the Superlative Arms piston kit. But this is the exciting thing to experiment with and I agree it opens up tons of opportunities.
 
Also, can you do a quick measurement of the picatinny rail on the receiver, on the handguard, and also the mlok slots on the handguard? Would be good to know if they've fixed those being out of spec previously.
When I get some more time, I'll be throwing it in the mill and probing all the key dimensions. Those being the rail height and piston hole distance from barrel center line.

In hindsight, I should have just tossed on a regular AR15 handguard I had kicking around when the barrel was off. I'm almost certain they won't match up.
 
Thankfully, as it basically uses a chopped AR15 bolt and carrier, standard action wrenches will work. Barrels are, as far as I can tell, standard AR15 with a carbine length gas system. This gun can be re-barreled easily.
View attachment 1219244

I see it looks like it uses an off the shelf AR15 bolt complete with gas rings, is the carrier machined the same spec inside so that the gas rings cause any resistance? Seeing as this gun is piston and not DI, it seems the bolt rings don't really serve any purpose.
 
I received mine earlier this week, very pleased with fit and finish. I am no firearm purist so maybe I just don't get the 'dislike' towards this rifle so far based on a few 'bad' reviews - just the mere idea that we even have these things in our hands is a huge win. I'll deal with whatever issues show up. Like you said, anything can be remedied.
 
I see it looks like it uses an off the shelf AR15 bolt complete with gas rings, is the carrier machined the same spec inside so that the gas rings cause any resistance? Seeing as this gun is piston and not DI, it seems the bolt rings don't really serve any purpose.
Standard bolt with the usual resistance from the gas rings. It's a non-issue, in my opinion. I prefer the off the shelf bolt rather than something proprietary.

Bolt bounce is going to be the biggest issue with this rifle.
 
Thanks for the great pictures! Would it be possible for you to measure the diameter of the piston port on the receiver, and of the piston itself with a caliper? Third Echelon may have some mid-length pistons left for the WK that may work, or he may be willing to make one for the Makasi, as he is doing some small scale Homesteader parts work at the moment. Thanks!
 
It's so close. I understand dimensional limitations to fit the recoil spring, etc. Personally, I'd have tried really hard to fit it in standard AR15 format. I'm sure they did too. Being so close, a custom made eccentric barrel nut would be possible for larger diameter handguards.
(calipers presented just to show offset, that is not how I measured it)

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I believe it's a TNA rail I had kicking around. It's one of the more narrow handguards. Barrel nuts are essentially the same effective outside diameter. The gas block rubs on the rail but it does fit. However, the E-clip that holds in the gas plug will not fit with this handguard.
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I will eventually spin up a custom, eccentric barrel nut to slap on the Aero Precision handguard I have kicking around. I really, really like the AP handguards since they are held onto the barrel nut with 8 screws. Easy to mount and dismount from the rifle, and super easy to add to a non standard rifle. I'm sad they went out of business just for these handguards.
AP_handguard.jpg

I will get a front view drawing made up when I have time to probe the upper showing dimensions for piston hole, rail height, etc. Patience, children.
 
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Last picture for a bit. I need to get back to work so I can go shoot this thing. My curiosity is satisfied. Piston hole measured with gauge pins. 0.251 pin fit slide with some resistance. Gas piston is 0.242 diameter. All dimensions are very close aproximates. I did some rounding as my quick and dirty probing set up wasn't super perfect.
Makasi_Layout.jpg
Note: viewing this digital file of firearm dimensions is illegal in Canada.
 
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Last picture for a bit. I need to get back to work so I can go shoot this thing. My curiosity is satisfied. Piston hole measured with gauge pins. 0.251 pin fit slide with some resistance. Gas piston is 0.242 diameter. All dimensions are very close aproximates. I did some rounding as my quick and dirty probing set up wasn't super perfect.
View attachment 1219498
Note: viewing this digital file of firearm dimensions is illegal in Canada.
Oh no! I liked the post, now I'm a criminal...


Ahhh. replied! Double criminal.
 
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