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Posted: 12/22/2008 7:36:10 PM EST
sorry if I'm posting this in the wrong spot. I looked and haven't found my answers yet.

I have a DPMS kittyKat 7" upper and just got a registered SBR lower. I Intend to run this with a can full time or at least most of the time.

question 1) what buffer would you recommend?

question 2) would this be a good candidate for a gas piston conversion? if so...what buffer to use with it and what kit would you recommend?

thanks guys.
Link Posted: 12/23/2008 1:27:22 AM EST
[Last Edit: 12/23/2008 1:28:10 AM EST by Mike929]
I was told by Gemtec that the 7.5 inch barrel does not always stabilize the bullets. They said to expect a can strike every 1000 rounds on average. They would not warranty the can for the damage of the unstabilized bullet.

If you want to run a can, I would suggest 10.5 to 11 inch barrel based on research. No first hand experience on my part.

Link Posted: 12/23/2008 5:45:29 AM EST
On something that short, you'll most likely want a heavy buffer. H2, H3, or even a 9mm if you listen to some of the talk around here. And as Mike said, most can manufacturers do NOT recommend using a supressor on any barrel shorter than 10.5". Even if you did, your not going to hush that bang. You might consider getting a longer barrel if you intend to use this for anything other than a range toy anyway.

That said...I love my 7"!!!
Link Posted: 12/23/2008 9:35:45 AM EST
hmmmmm what about a 1:7 twist rate barrel? would that prevent a baffle strike with heavier ammo I wonder??
Link Posted: 12/23/2008 3:34:09 PM EST
I use a .308 can. Bigger diameter exit hole.
Link Posted: 12/24/2008 6:25:59 AM EST
Originally Posted By London_01:
hmmmmm what about a 1:7 twist rate barrel? would that prevent a baffle strike with heavier ammo I wonder??


I'm no expert but I would think not. Besides, there's always the higher pressure issue to contend with. it's just not a good idea to stick suppressors on something so short.
Link Posted: 12/25/2008 3:02:40 AM EST
I run the ST-SST buffer from Spikes, on my 7 inch.. 5.56 loads were too hot and making the bolt run super fast. Their buffer is 7.0 oz and machined nicely.. I recommend it highly.
Link Posted: 12/25/2008 5:59:47 AM EST
Originally Posted By DirtySouthNarco:
I run the ST-SST buffer from Spikes, on my 7 inch.. 5.56 loads were too hot and making the bolt run super fast. Their buffer is 7.0 oz and machined nicely.. I recommend it highly.


I think I'm gonna run that in my two builds. Both of mine are 11.5" though. I'm still researching to see if they are TOO heavy

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