Underlug staples are authentic,stronger, easier to install, and they remove less metal than dovetail lugs. Not suitable for thin walled barrels. Staples work well for keys, pins, or supporting a sling swivel.

Insert one end of our staple into your hole, and seat it with a light hammer blow. Place the semicircular slotted end of this tool around the staple's seated end. Strike it with firm blows, to stake the staple permanently in place. Seat the opposite end, and stake it. Malleable staples allow bending. Stake one end securely, before attempting to seat the other end. Straighten after staking.