Looking for suggestions on canada legal mechanical delayed blowback PCC's
- Thread starter BrianFriberg
- Start date
AlphaCharlieDelta
Member
- Location
- The Wet Coast
As far as I know there are no legal delayed blowback pcc's in Canada. You can add a roller delay system to the FX9 and the Raven 9, like the Sheel roller delay. But as far as pcc's based off a delayed blowback system... none currently. Unless you count the Kriss vector... but its not a true delayed blowback.
Interesting. That sheet roller delay looks pretty nice
AlphaCharlieDelta
Member
- Location
- The Wet Coast
One of our club members used it in his FX9 last match and he was pretty happy with it
I'm curious - What is it about the Kriss that you think makes it not a "true" delayed blowback?
Edit: Aside from the 22LR version, the Kriss Vector is certainly advertised as delayed blowback, and it meets my criteria.
Last edited:
It's not mechanically delayed, but the bolt travels around a bend and then downward, so it's not a strait blowback either.
I see what you mean. You can make a useful distinction between the common "mechanically delayed blowback" systems on various existing/old designs and what Kriss calls their Super V system.
The Kriss is certainly not straight blowback, in any case, and I think that's what the OP was probably meaning. And Kriss' lawyers are apparently confident that they ca say that it is a "type of delayed blowback". Maybe because the bolt is slowed by having to travel around the bend.
Exactly
AlphaCharlieDelta
Member
- Location
- The Wet Coast
As additional info on the Kriss vector... in full auto their recoil system is slick as monkey crap in a banana factory (shot one in vegas), the semiauto version is not so bueno (shot one up here). There is a weird recoil impulse that is very noticeable in the semi auto format, where the full fun version seems to be very smooth (As a note, they are heavy AF in both configurations).
So far the best recoil impulses on what we have up here are a raven 9 or FX9 with either the Sheel roller delay, or Hydraulic buffer system (Kynshot RB5015HD, one 2.5oz spacer, flat wire 308 carbine spring, in an AR10 buffer tube.... this is what I'm running currently). There is also the MBX air system, I personally have not tried this one yet.
Until we see a change in government and the removal of the OIC, we wont see any platforms that are full mechanical roller delay out of the box.
So far the best recoil impulses on what we have up here are a raven 9 or FX9 with either the Sheel roller delay, or Hydraulic buffer system (Kynshot RB5015HD, one 2.5oz spacer, flat wire 308 carbine spring, in an AR10 buffer tube.... this is what I'm running currently). There is also the MBX air system, I personally have not tried this one yet.
Until we see a change in government and the removal of the OIC, we wont see any platforms that are full mechanical roller delay out of the box.
The Kris’s was built to be fully automatic. That was the whole idea behind it. A full automatic that had virtually no recoil or muzzle climb. It’s one of the reasons I’ve never bought one. The whole configuration doesn’t really make sense in a semi-auto PCC. I mean, how much recoil and muzzle climb do to get out of a PCC firing one round at a time.
Not sure about delayed blowback PCC’s. Are there any H & K’s that are delayed blowback. UMP? USC? That are still available to us, is the other question?
Not sure about delayed blowback PCC’s. Are there any H & K’s that are delayed blowback. UMP? USC? That are still available to us, is the other question?
That sure seems to be what it was designed for. I've always wondered if the different recoil impulse you get with the Kriss could be adapted to by using a different grip, and still get some benefit in semiauto mode. There don't seem to be many serious competitors using one for PCC gun games, so that kinda tells me that if there is any benefit, it's not worth the effort.
Still, it's an interesting gun, and it's not a straight blowback.
There's also the Maxim Defense roller delayed buffer system. It works a bit different than the Scheel, in that the buffer interacts with itself and the rear of the bolt vs the buffer tube. RDSC said they could bring one in for me for about $320.
AlphaCharlieDelta
Member
- Location
- The Wet Coast
Yeah it's an option for sure, but it very similar to the armaspec or the JP silent capture system. For sure won't work on an FX9, and untested as of yet on a raven 9...Farmerdan has one on the way and I'm sure he will let me have a few pokes with it and one of us can report back. Right Dan?!
It's not at all similar to the Armaspec or JP. I run a JP SCS and an Armaspec Stealth in my .223/9mm uppers on the same gun, and I'm in the process of acquiring a Maxim roller delayed buffer for the 9mm. It works with ball bearings and friction to physically delay the opening of the bolt, and weighs much less. The SCS/Stealth are simply buffer systems with captive springs. There's no delay to them. It's much more similar to the Scheel.
And why won't it work on the FX9? All it needs is a hollow base bolt, which most AR 9mm bolts have, does the FX9 not have a hollow base bolt?
I don't have an fx9 but apparently the bolt is very short. Still possible to use the maxim if you get a longer buffer tube and place the correct length spacer between the bolt and buffer system and then shim the buffer to be at the correct position to lock up with the bolt forward. And of course, hollowing out the bolt.
AlphaCharlieDelta
Member
- Location
- The Wet Coast
The FX9 bolt is quite short, and the receiver is as well. Any recoil system that has a rod that protrudes, like the maxim, the JP, and the armaspec won't work on an FX9. It will get damaged by the bolt, or damage the firing pin. I contacted Freedom Ordnance to see if it was possible. And that's the similarity I was alluding to in the previous post. As it stands I am more than happy with my hydraulic system, so won't need to try and adapt one of the aforementioned systems to work. Now in the Raven...I'm intrigued to see if it works because it's bolt is the same length as an AR9 I believe.
