r/canadaguns • u/DecentCompetition754 • Jun 23 '26
Gun and gear reviews Makasi barrel swap info
I'm down in the U.S.
Just picked up the 16 inch version.
Can confirm, multiple parts are interchangeable with AR15 parts.
I personally swapped the standard trigger with a Rise Armament LE145 drop in trigger.
I also wanted to upgrade the barrel to a chrome lined (just a personal thing with me). I went with a Criterion Hybrid 16 inch chromelined with a .223 Wylde chamber and headspaced BCM bolt.
While the Makasi uses AR15 barrels, they are drilled and pinned. I used the following Jig to drill the new barrel myself. BRD engineering MK4.
It comes with a 1/8 guide to drill the pin, but the makasi gas block uses a 3/16 pin. I found and used the following bushing without issue, it will fit on the MK4 jig in place of the 1/8 guide.
[https://www.mcmaster.com/product/2868T37\](https://www.mcmaster.com/product/2868T37)
I did notice that the 2 bolts that interface through the handguard and the barrel nut were not in line, resulting in teeth marks on the barrel nut from the handguard mounting bolts. I easily fixed it by adding some shims to the barrel nut.
Finally, I wanted more of a fixed stock look for the Makasi. Unfortunately, I could not find any ready to order adapters that convert from 1913 picatinny to M16 female end plate. I combined the 2 items below to make my own. I had to Dremel the edges of the Yueoct mount so they would fit inside the anti rotation ledges of the adapter mount, but thankfully everything else lined up fine (the 2 parts even has the same 1/4 bolt matching threads!) Items below.
Now that I've got it set up, will try to take it out for a spin in the next week or so. If anyone has questions about specific aspects of the rifle, let me know, I'll answer as much as possible.
3
u/DecentCompetition754 14d ago edited 14d ago
Updates!!!
I recieved the F5 MFG ACR stock Gen 3 and the Midwest Industries MLoK Drop In Quad Rail.
ACR Stock:
Attached without issue, however because F5 doesn't make a Makasi specific Picatinny rail, the alignment is off by one groove, so I had to situate the stock one groove above top level so its not perfectly flush with the top of the reciever. Ended up not being a big deal after I added my rear sight, it created a "pocket" that my rear sight flips down into, so the lines still look good!
MI Quad Rail:
Got the rail attached, and noticed the following things. Can confirm, the Makasi reciever is slightly taller than an AR15 reciever. You can see in the pics I will attach below the height difference. Also, the underside of the Quad rail "bridge" that extends to the reciever sits on top of the reciever "extension" that acts as a anti rotation tab for the original handguard I mentioned in previous posts. With the Quad Rail fully installed, it seems like the piston has just enough clearence to function, but its a very tight/close fit. I honestly can't say for sure until I take it out an shoot it.
As for the height difference between the handguard and the reciever, I may have to purchase a taller front site post to offset the difference, but I won't know for sure until I shoot it.
As stated before, the Delta ring, spring, barrel nut, and retaining clip have been dremeled/altered to accommodate the piston and allow for drop in handguard use.
If it functions/works, I'll probably leave this as my base set up. Only other addition will be some sort of slim covers for the handguard to keep the "FAL" looks.
See pics below: