I have an Ultra Compact without the v10 ported barrel. I intentionally avoided the ported barrel, even at a 500.00 price tag for a used one. My reasons were because of the extra loss of power in an already short barrel, not to mention the flash from the ports in low light. Are you wanting the porting to reduce recoil? The recoil on the ultra compact is very manageable even when shooting fast. My wife enjoys shooting it but she will not shoot the Glock 19 9mm. I have not had a single malfunction either.