Ar15 adjustable gas blocks

[reed1285]

I (finally) got my sbr stamp back the other day. I was originally going to put a 10.5" Noveske switchblock barrel on it, as I plan on a suppressor in the near future. Ive expanded my search though to include adjustable gas blocks. Anybody here have experience with a jp or syrac block? The syrac is the more expensive of the two, but if the quality and effectiveness justifies the extra money, i don't have a problem paying around 40 extra bucks for it. Also, if i go the adjustable gas block route, I'm looking at Rainier barrels. Any experience/thoughts/opinions on those? Thanks for any input.

[Lumber_Jack]

If I were buying another adjustable block I'd get a Syrac Gen II or an SLR https://www.slrrifleworks.com/ They have click adjustable screw. No buttons to push or set screws. Also I have a Rainier Mountain Series barrel on my 5.56 and it's a really nice barrel.

[reed1285]

So the click adjustable set screw is what separates it from the jp? Thanks for the info!

[Photoguy67]

The SLR is the one I am planning on getting myself. One thing I like about it is the simplicity, take it apart in a few seconds and nothing to lose like small balls or springs. Also, it can be adjusted from the front without removing the hand guards, something I noticed with some other types.

[Lumber_Jack]

[quote name="reed1285" post="1180544" timestamp="1408302087"]So the click adjustable set screw is what separates it from the jp? Thanks for the info![/quote] Yeah the JP you will need to use blue loctite to make sure it stays where you set it. That's not a big deal, I do that on my Kies block but to have the click adjust retention is worth the money IMHO

[reed1285]

[quote name="Lumber_Jack" post="1180549" timestamp="1408303510"]Yeah the JP you will need to use blue loctite to make sure it stays where you set it. That's not a big deal, I do that on my Kies block but to have the click adjust retention is worth the money IMHO[/quote] Yeah it sounds like it. It sounds like that would be the way to go so you can make adjustments almost on the fly. Ive also thrown in a yhm 10.5 fluted barrel in the mix. It saves about 3 ounces over the rainier i was looking at. I want this thing to be as light as possible too.

[samson7x]

I have a Syrac gen II and the click adjust is well worth it.  I had a Kies and had to loctite it all the time and it never stayed where I wanted it.  Click adjust resolved that issue, but at a higher price point.  I would definitely (and plan to on future builds) buy another one. 

 

I also have a Rainier barrel for 300blk and it has been a great barrel.  Rainier is high quality.

[reed1285]

[quote name="samson7x" post="1180590" timestamp="1408308603"]I have a Syrac gen II and the click adjust is well worth it. I had a Kies and had to loctite it all the time and it never stayed where I wanted it. Click adjust resolved that issue, but at a higher price point. I would definitely (and plan to on future builds) buy another one. I also have a Rainier barrel for 300blk and it has been a great barrel. Rainier is high quality.[/quote] Awesome thanks for the input

[cch2a]

I run the Syrac Gen I and Syrac Gen II with a suppressor on a 11.5" and 16" respectively. I'm in love with the adjustable gas blocks. It is night and day even compared to my mid lengths. Super soft recoil and no gas to the face even with suppressor. Edited August 17, 2014 by cch2a