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I just joined the Saiga club...round trunion, yay or nay?


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I have no clue when it comes to the round vs. flat trunnion in the iz240's. If it runs good like it should, then you have nothing to be worried about!

What year was yours made? (first two numbers in the serial)

 

Congrats on your purchase.

Edited by Mullet Man
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I have a round one as well I just got. I bought a flat bullet guide with out looking first because I thought they were all flat also. The good newas is I have about 100 rds through it with bulgy circle 10 mags with no malfuntions. It suprised me that it feed that good with out a guide.

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  • 4 weeks later...

Same here. Are you getting a bullet guide?

 

I am still thinking about this. Mine feeds flawlessly from AK-74 magazines without a bullet guide, but I will remain open to the idea of installing one, as I have not fired my Saiga 5.45 extensively yet (I have only put 150 rounds through it thus far). My Saiga 5.45 was made in 2009 and appears to have a flat trunnion.

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Same here. Are you getting a bullet guide?

 

I am still thinking about this. Mine feeds flawlessly from AK-74 magazines without a bullet guide, but I will remain open to the idea of installing one, as I have not fired my Saiga 5.45 extensively yet (I have only put 150 rounds through it thus far). My Saiga 5.45 was made in 2009 and appears to have a flat trunnion.

 

After evaluating both guides, I've decided to go with Dinzag's (kit with guide, screw, allen wrench, drill bit and tap).

Fits like a glove and easy to install.

"Bulgie" above required dremmeling I didn't care for.

Still keeping it for spares.

However, 250 rounds with Tapco mags before any guides and no jams...

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  • 3 weeks later...

Re my last post, now that I have the 5.45 and 7.62 side-by-side, I'm pretty positive that the 7.62 round BG will work in the round-trunnioned 5.45s. I don't feel like pulling the guide out of my 7.62, but I've got a second one on the way for the 5.45 to test the fit/ function on.

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I have a rounded trunion produced in March of 2009 and ordered in Dec. of 2010 from Mississippi Auto Arms. If you think about the flat vs rounded trunions and the path of the 5.45 round to the chamber, it almost makes sense that the round trunion is better suited to "ramp" the round more efficiently into the chamber vs the flat trunion. Reason being that the cartridge has a higher "ramp" with the rounded trunion vs. the flat trunion? Either way, I'd rather have a round trunion vs a flat trunion... Just how I like my women...

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  • 8 months later...

I'm not going to swear by this but; I believe the extra shoulder on the K-VAR bullet guide is there to rotate the bolt into lock up. The Saiga has a little bump that is built into the receiver that rotates the bolt. The original Bulgarian bullet guide would most likely not fit in a Saiga. If you look into your rifle you will see the bump I am referring to. It appears to be placed in the same position as the shoulder on the Bulgarian guide.

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  • 1 year later...
Anyone tried Bulgarian round guide from K-Var?

I am very tempted, as it looks like a perfect fit.

(I'd use machine head screw instead of rivet).

http://www.k-var.com/shop/product.php?productid=16321&cat=281&page=1

 

AK-545BG.jpg

The hump on the front ramp looks like the Interarms Tantal I have, which has never jammed, compared to the ramp that has a flat front on my Saiga which jams, and I am working on as I type.

Edited by Landis
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  • 2 weeks later...
What does Arsenal use in their SGL 31 conversions? They seem to have a good reputation.

 

They're not conversions, but they use the current bullet guide that goes into the Russian AK-74M and 100 series that is riveted in.

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  • 2 months later...

My 5.45 Saiga has the flat trunnion. It also seemed to work fine using Bulgarian polymer 30rd mags...never a jam.

I wasn't sure about putting in the bullet guide, since it worked so well without it

However, when I did my conversion, I installed the CSS bullet guide.

After going to the range, I had to admit that while racking the bolt, feeding felt smoother...noticeably smoother.

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