6.5 Grendel Forum
CZ 527 18” threaded - Printable Version

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CZ 527 18” threaded - 806guns - 02-26-2021

New to me Cz 527 cut down to 18” threaded. The threads are 1/2x28 for a suppressor. Anyone know of a flash hider that will work most are 223 call in that thread.


CZ 527 18” threaded - A5BLASTER - 02-26-2021

Check precision armaments website. They make a couple of diffrent thread adaptors.


CZ 527 18” threaded - Oso Polaris - 02-26-2021

Unclear what is the issue that you are having with the thread pitch. The 1/2"x28tpi is the industry standard for all calibers .223/5.56 and smaller. Whereas, 5/8"x24tpi is used for calibers 6mm and greater. Once you get to the big boys Cheytac/BMG it is a larger thread.

If your rifle is chambered in 6.5 Grendel then you want a 5/8"x24tpi to give you enough wall thickness to preserve the rifle bore while still allowing for threading.

What is the caliber of your CZ527?


CZ 527 18” threaded - riuma - 02-26-2021

Oso Polaris Wrote:Unclear what is the issue that you are having with the thread pitch. The 1/2"x28tpi is the industry standard for all calibers .223/5.56 and smaller. Whereas, 5/8"x24tpi is used for calibers 6mm and greater. Once you get to the big boys Cheytac/BMG it is a larger thread.

If your rifle is chambered in 6.5 Grendel then you want a 5/8"x24tpi to give you enough wall thickness to preserve the rifle bore while still allowing for threading.

What is the caliber of your CZ527?
I'm guessing it is a standard American 6.5 Grendel that was threaded 1/2-28, and for which the previous owner used an adapter. I was faced with the same situation and opted for buying a CZ Varmint, already threaded, instead of cutting down myfavorite hunting rifle.~Riuma


CZ 527 18” threaded - Oso Polaris - 02-26-2021

Riuma,

That was my guess as well since its the 6.5 Grendel forum, but I thought I would ask the obvious question. I have seen somewhere of small vendor who machines muzzle thread adapters... can't find it right now.

Found It: https://forum.accurateshooter.com/threads/muzzle-thread-adapters-1-2-28-to-5-8-24.3926892/


CZ 527 18” threaded - Old Bob - 02-26-2021

Like A5BLASTER posted, Precision Armament has thread adapters with or without a shoulder. They appear to be in stock...


https://precisionarmament.com/muzzle-accessories/thread-adapters/


CZ 527 18” threaded - rcook10 - 02-27-2021

Also not too hard to find a smith who will bore out a 223 muzzle device. Really nice if you have a can that need to be shared. Or just cut her down to 16 and make it 5/8x24 like baby jesus our lord in grendel intended.


CZ 527 18” threaded - riuma - 02-27-2021

Oso Polaris Wrote:Riuma,

That was my guess as well since its the 6.5 Grendel forum, but I thought I would ask the obvious question. I have seen somewhere of small vendor who machines muzzle thread adapters... can't find it right now.

Found It: https://forum.accurateshooter.com/threads/muzzle-thread-adapters-1-2-28-to-5-8-24.3926892/

Huges Precision. I bought a 1/2-28 to 5/8-24 adapter for my Tikka 308 from them for about $20. Excellent work. In fact, they are my first stop when I'm looking for such an item. Luckily, a 1/2-28 to 5/8-24 is not an odd ball. I recently bought a 1/2-20 to 5/8-24 for my Steyr Scout in 6.5CM. I finally ended up ordering it directly from Gunsite.~Riuma
https://hughesprecision.com/product/12-28-to-58-24-stainless-steel-barrel-thread-converter-made-by-hughes-precision/

Theis is a stainess version. They have blued.