One was easy to mount on each side of our bed on the headboard. We have two pistols, so we purchased one for each pistol for both sides of our bed. Once mounted we removed the foam padding and modified them to fit the front sight and light attachment. The safe holds the pistol along with their red dot sights and lights with no problem. The biometric works perfectly on one of the safes. The other safe sometimes takes two or three attempts to get the fingerprint to work. I wish you could turn off the alert on the safe when it opens and when the biometric fails. You can set up to a six digit code to unlock. You only have four digits to choose from to make up the code though - 1,2,3 and 4. This safe is not to prevent theft of the pistol since it could be ripped off the headboard using a crowbar. It is for quick access in the case of someone breaking into the house when we are home. The guide says not to have a loaded pistol in them, but that is actually what it is designed for. Just a CYA for them. I gave it a 4 star because of the issue with the one biometric. I would recommend this safe for anyone wanting a locked pistol safe with easy quick access.