sks with fn lower hybrid....legal to do so?

The thing that gets me on this is such. IF you use the original FAL fire control mechanism, the hybrid can be easily made FA.
The safety sear would be engaged by the bolt dropping down rather than by the carrier closing unless you use the SKS fire control group then it would be legal. Use the lower as just a shell to house the original trigger group.
 
Biggest problem with a hybrid will be getting reliable primer strike using the new trigger system. The concept isn't hard per se to build or replicate, so anyone with interest can think it through and make one pretty easily. A big one is the new trigger group to avoid the whole FAL trigger group problem.

This guy seems to be handling the concept the best, though he is contending with different rules
http://www.sksboards.com/smf/index.php?topic=57276.0

Beermaker said:
The thing that gets me on this is such. IF you use the original FAL fire control mechanism, the hybrid can be easily made FA.
The safety sear would be engaged by the bolt dropping down rather than by the carrier closing unless you use the SKS fire control group then it would be legal. Use the lower as just a shell to house the original trigger group.
Click to expand...

This' exactly the issue. There are multiple ways to deal with it, but to get it allowed by the CFC you need to make sure it isn't "easily" altered. Ultimately the best option is to use an already approved trigger control group, it's just fitting it and getting everything to cooperate in the right place, at the right strength, that is the problem. The most likely issue will be that all new trigger groups have hammers that are too big, but if made to fit they're too light, and in order for the bolt to cycle the hammer spring needs to be lightened. It's a bit of a catch 22.

It's well worth repeating: contact the CFC and make sure you let them know what you're doing and that it's legal. Since the caliber, receiver, action and barrel length stay the same you aren't changing the registration of the SKS, but you don't want to fall afoul of them simply because someone panicked and started an investigation. I've always found working with the CFC techs on this to be a rather pleasant experience and they were both polite and helpful.
 
Last edited:
Rallix said:
09easter011.jpg


You mean this?
Click to expand...

Not my cup of tea..... looks ugly.... im sure it would be legal as long as u only use the lower as a shell.
 
I like it but id probably take all the wood and sand it down and do it all in a glossy lacquer of 6 or so coats.
that's depending if the wood was close. otherwise stain my be in order first.
But either way i would def be trying to match up that rear stock and the for stocks color wise.
 
Beermaker said:
The lower especially the design of the trigger, trigger sear and the safety sear is what makes it able to go FA.
The FAL design is FA but has been made to SA only and yes FA is way too easy. The upper portion is just a block of steel with a barrel and a gas tube. Nothing special there. I do believe that most firearms are categorized by the lower, frame or where the fire control is. Plus with the overall design the magazine is too far forward to be comfortable. The FAL design just fits into your arms with the mag against your inner forearm for support.

My 2 cents.
Click to expand...

The auto sear in the FAL is in the upper receiver (the serialized part that is in itself the firearm). With the SKS receiver taking the place of the FAL receiver, there would be no auto sear present. A FAL cannot fire automatically without the auto sear, even with a three-position selector, as the hammer will follow the bolt carrier forward without enough energy to fire a chambered round. The result is a round in the chamber of an uncocked rifle.

The FAL trigger group in this hybrid must function as it did in the original rifle: no auto sear, no full auto.
 
The concern is that the CFC will fit an auto sear to the SKS. Realistically it's possible on almost any gun, but I suspect the techs wouldn't want to see the FAL system used and would try to get it to fail.
 
To the best of my knowledge there is no such thing as an auto sear in the FAL. You put the FA change lever and a shorter trigger return plunger into the C1 and it will work FA. OR you put the string or match in the right place on the right part and you have FA.
If you were to use all the FAL trigger components working as the did in the FAL into an SKS you had better had a good lawyer.
The safety sear does sit in the upper portion but I don't know if it is part or considered part of the upper. Even if you didn't use the actual sear and you made one, it would function the same. On the SKS the disconnector functions like the safety sear but is also used to disconnect the trigger bar from the sear. So it has multiple purposes to ensure semi auto action. The FAL safety sear prevents the hammer from falling before the breech block is in full battery and locked down by the carrier thus preventing pre-ignition. Therefore creating a "safe and proper" full auto firing. This works with the hammer, trigger and trigger sear limited by movement by the change lever.
 
the Canadian military call the auto sear as safety sear so there are auto sear in fal, you can call it a disconnector if you like cos they all do the same thing .

Beermaker said:
To the best of my knowledge there is no such thing as an auto sear in the FAL. You put the FA change lever and a shorter trigger return plunger into the C1 and it will work FA. OR you put the string or match in the right place on the right part and you have FA.
If you were to use all the FAL trigger components working as the did in the FAL into an SKS you had better had a good lawyer.
The safety sear does sit in the upper portion but I don't know if it is part or considered part of the upper. Even if you didn't use the actual sear and you made one, it would function the same. On the SKS the disconnector functions like the safety sear but is also used to disconnect the trigger bar from the sear. So it has multiple purposes to ensure semi auto action. The FAL safety sear prevents the hammer from falling before the breech block is in full battery and locked down by the carrier thus preventing pre-ignition. Therefore creating a "safe and proper" full auto firing. This works with the hammer, trigger and trigger sear limited by movement by the change lever.
Click to expand...
 
The legal receiver is the upper, so any serial on the lower is legally irrelevant.
The safety sear/auto sear/whatever is irrelevant unless it were to contact the SKS bolt carrier in such a manner as to function as a safety sear/auto sear/whatever.
 
You must log in or register to reply here.
Back
Top Bottom