I have both....FAAAAAR prefer the Gen 1. The only advantage the 2 has it that it's easier (read: cheaper) to produce. Don't get me wrong, there's nothing *wrong* with either gen, but given the choice I'll take the 1st gen every time. It's heavier duty, easier to adjust, and super simple.
On a side note from all I have read he thermold mag seem to have proven the best mag for the rfb in Canada and the USA; so much so that I read on ktog forum that kel-tec will be using them as there official supplier.
The gen 1 may be less finicky to adjust due to less settings but there is very little room between the right amount of gas and too much on the RFB. With some ammo on the first gen you have to over gass it slamming the bolt too far back since the adjustments are larger. This is why the adjuster was changed on the second gen.Wrong way you confirm what I taught, and correct me if I am wrong, but I think the gen1 would also be alot less finicky with ammo as there is less of a precise setting?
Also mine will cycle norinco surplus (147 or 145 gr. I don't remember witch it is) and Winchester ballistic silver tip 168gr on the same setting.
On a side note from all I have read he thermold mag seem to have proven the best mag for the rfb in Canada and the USA; so much so that I read on ktog forum that kel-tec will be using them as there official supplier.
The gen 1 may be less finicky to adjust due to less settings but there is very little room between the right amount of gas and too much on the RFB. With some ammo on the first gen you have to over gass it slamming the bolt too far back since the adjustments are larger. This is why the adjuster was changed on the second gen.
Ummmmm.....no.
Lol! There's a TON of room between "the right amount of gas and too much". One-two clicks either way won't cause stoppages or "bolt slamming"....that's rediculous. The *reason* it was changed was because A: The original system was too expensive machining wise (the gas plug in the gen 1 is a thing of beauty, and B: It wasn't ideal for suppressor use as by the time it was cranked wide open the plug was turned so far it could fall out of the gun, so most guys just removed it. Seeing as the chances of me EVER being allowed a suppressor are somewhere between slim and none, I'll take the gen 1![]()
Not to hijack the thread, but there was rumour of an auto gas plug for the RFB.
Anyone know the status? It was being prototyped last time I looked into
it.
P.S. And this thread just reminded me to take the RFB out this week![]()
It must only be rediculous to certain people seeing as the rifle it happened on was eventually replaced free of charge.Ummmmm.....no.
Lol! There's a TON of room between "the right amount of gas and too much". One-two clicks either way won't cause stoppages or "bolt slamming"....that's rediculous. The *reason* it was changed was because A: The original system was too expensive machining wise (the gas plug in the gen 1 is a thing of beauty, and B: It wasn't ideal for suppressor use as by the time it was cranked wide open the plug was turned so far it could fall out of the gun, so most guys just removed it. Seeing as the chances of me EVER being allowed a suppressor are somewhere between slim and none, I'll take the gen 1![]()
If it ever went in to production I would buy it just to test it out even though I never change the adjustment from my hunting ammo and use as a single shot with other ammo because the bolt will not fully cycleNot to hijack the thread, but there was rumour of an auto gas plug for the RFB.
Anyone know the status? It was being prototyped last time I looked into it.



























