tag for interest.

 

are these something they just started carrying?
i think theyve had them it fits the milled rifles they sell that have ak-74 style components i believe

 

I do believe they have had them for awhile.

If I recall they are replacement barrels for the milled bulgarian rifles with 90 degree gas blocks. SA93 rifles I think.

 

My SA93 has the standard AK47 milled heavy barrel with the 45 degree gas block

 

Yes., fits the current milled Bulgarian rifle series. It is not a standard AKM barrel.

It has:
standard 23mm trunnion journal
RSB is AK47 pattern journal
barrel gas port is located for a 90 degree AK74 pattern gas block
designed for the 24mm threaded AK74 type FSB

They can be used for an AKM build but require adjustment as the gas port is not set for a 45 degree block and the barrel port is further forward. Some mill a channel in the barrel behind the port to install a 45 degree block

The barrel should have a .560" forward area that can be turned to .550" and threaded for 14mmx1 standard threaded FSB.
The RSB journal needs turned down for an AKM RSB or the sidewalls trimmed to fit an AKM trunnion or the trunnion ears opened up. A AK47 RSB has the 800 meter sight ladder and an AKM ladder will not fit that RSB properly.

However for a modified build they work well. I have a couple., one I got for $100 at Knob Creek and one for $155 in a K-VAR sale.
You just have to know what works with the barrel and have the parts & tooling or lathe if required.

Here is a build on an AKM kit but the forward components using the AK74 pattern barrel components etc.




A mock up of a front end possibility using that barrel with a Bulgarian FSB/GB gas block front sight block combo and the CNC Warrior barrel cover.

 

As others have said, it's for the modern Bulgarian milled gun that uses a 90 degree gas block and AK74 style FSB.

 

This is an AK-100 type 7.62 barrel for SLR107 or SGL21s....it's not an AKM barrel or type 3 heavy profile barrel.


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AFAIK the AK603 barrel is for the SAM and SLR stamped series and the 601 were for the SLR milled series. Small differences in the barrel diameter at the muzzle area and price.. They are both similar.

 

The Bulgarians make / made 3 different milled barrel set ups;

23mm "Classic" barrel with 45 degree gas block
23mm barrel with 90 degree gas block but set up for standard FSB.
23mm barrel with 90 degree gas block but set up for an AK74 style FSB

 

That I know. The SAM7SF has 74 brake and the SAM7 is 14mm LH threaded. I figured it was the same barrel, just thread it or not.

I wanted to put a Classic type 3 barrel setup on a SAM7 for the old look, lol


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I think the 601 was for the SLR early milled series and were turned to 540". They used the AK47 pattern FSB but it was a AKM pattern journal size. A very oddball part.

Here is the similar barrel to the SLR95 only in in 5.56. AK47 pattern RSB but the FSB is a AK47 look-a-like but in the AKM .572" journal size and the fish gill muzzle device. The barrel at the muzzle was .543" a bit undersized for 14mm threads but I threaded it and ran a tap into the press & pin fish gill brake so it threads on. I drilled the FSB for the plunger and spring and notched the fish gill brake.
A hybrid Bulgarian front end on a Zastava M85 back end.