What's the TpI on my DPMS?

waylap · 03-07-2009, 08:13 PM

I have a DPMS Pantherlite 16 inch carbine. It has an A1 upper with an A1 stlye birdcage flash surpressor. I think I want to change the surpressor to the Bushmaster shorty style that is about 4 1/2 inches long with internal threads that makes it look like the old commando style rifle. The new surpressor says it has 1/2 x 28 tpi. Is this compatible with my DPMS threads?

ranger_sxt · 03-08-2009, 12:48 AM

It should be. 1/2x28 is pretty much the standard for AR threads these days...

**robocop10mm** · 03-08-2009, 03:23 PM

5.56/.223 AR barrels (if threaded) should always be 1/2 X 28. The 9mm's ae different and the .308's are different.

03-07-2009, 08:13 PM	#1
waylap Junior Member Join Date: Mar 2009 Posts: 4	What's the TpI on my DPMS? I have a DPMS Pantherlite 16 inch carbine. It has an A1 upper with an A1 stlye birdcage flash surpressor. I think I want to change the surpressor to the Bushmaster shorty style that is about 4 1/2 inches long with internal threads that makes it look like the old commando style rifle. The new surpressor says it has 1/2 x 28 tpi. Is this compatible with my DPMS threads?

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03-08-2009, 12:48 AM	#2
ranger_sxt Senior Member Join Date: Jul 2007 Posts: 321	It should be. 1/2x28 is pretty much the standard for AR threads these days...

03-08-2009, 03:23 PM	#3
robocop10mm Moderator Join Date: Jul 2007 Location: Austin, Texas, by God!! Posts: 3,955	5.56/.223 AR barrels (if threaded) should always be 1/2 X 28. The 9mm's ae different and the .308's are different.