Double Alpha Alpha-X Insert Block - HK USP

The Double Alpha Alpha-X Insert Block - HK USP secures the pistol solely at the front end of the trigger guard, necessitating a precise fit in that area. In some instances, minor adjustments to the insert block may be needed.

The Insert Block Assembly includes:

1. The Locking Block (HK USP).
2. The Sliding Lock, assembled (HK USP).
3. The safety lever, assembled.
4. The internal magnetic activation system, assembled.