Semi-Auto? Check if the gas seals are installed correctly (in other words, flip them around). Rem 1100's would have the same problem if their gas seals are not installed correctly.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)