A few years ago, you could get guide rod lasers all over.
And now that they are so rarely offered, I wonder if there were some problems that caused them to stop making it.
Go with the above suggestions. A laser near the muzzle seems to "jump around on target" more than one in the grip when aiming. Go to the store that offers lasers and has a demonstration stand.
"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)