5.56 NATO / .223 Receiver Saver Hammer Drop Block
The Receiver Saver is a drop-in block that will help you get the feel and pull weight when installing and tuning your trigger, without the danger of cracking your lower receiver.
Will fit most AR15’s that use the 5.56 NATO / .223 Remington caliber G.I Style magazines.
The 5.56 NATO / .223 Receiver Saver Hammer Drop Block is made of a shock-absorbing plastic. When in place the block prevents the hammer from striking the wall of the magazine well.
The Receiver Saver fits into the magazine well with the upper receiver open or removed and locks in place with the mag release catch. The top is serrated so you can hold it in a receiver that is not fully assembled.
This is an extremely handy tool when installing any of the M-K II Triggers
Designed to withstand thousands of hammer strikes and is covered by the Wisconsin Trigger Company Transferable Lifetime Guarantee.