ROLEXrifleman Posted January 18, 2016 Report Share Posted January 18, 2016 DPMS 7.5" Kitty Kat Barrel Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Then a ton of grinding and sanding later..... Also a coat of cold blue Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
Broke_Audio_Addict Posted January 18, 2016 Report Share Posted January 18, 2016 How well do ar's function when they are that short? I know I've read something about them not liking short gas systems. I know very little about the subject so forgive my ignorance, just curious about it. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 The 9mm in the other build log is blow back, so there is no gas system involved and the only issues come when you use to light a buffer. The 9mm is more abusive to parts than the 5.56. Now when it comes to 5.56, since it has such a short gas system the bullet has a short dwell time in the barrel. Dwell time is the amount of time the bullet stays in the barrel building gas pressure. Some short gas system guns then short cycle due to lack of pressure. Some on the other hand are OVER pressurized and spit gas back through the ejection port and slam the bolt rearward very hard. Over or under pressure is regulated by gas port size. so the gas port is the key. Managing over or under is done with adjustable gas blocks and different weight buffers. This is a real short explanation on something that can take pages btw Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
ROLEXrifleman Posted January 18, 2016 Author Report Share Posted January 18, 2016 Rolex you sicken me. Just let me finish my pie ~ Juice Link to comment Share on other sites More sharing options...
bcpballer64 Posted January 18, 2016 Report Share Posted January 18, 2016 Aww he's just a little feller "The strongest reason for people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government." -- (Thomas Jefferson) Link to comment Share on other sites More sharing options...
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