AR Sponsor
Posted: 8/17/2008 7:40:48 PM EDT
| What could cause extreme fouling? I have a 24" Model 1 upper and RRA BCG and it fouls up 3 times as bad as my other 2 the cartridges are even coming out dirty. I shot all 3 today and fired the other 2 more and with the same ammo they just needed light cleaning. but the 24" took about an hour. Any ideas? It seems like there is alot more blow back. |
AR Sponsor