HK German MP5SD Factory Locking Piece
MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most...
New HK German Ambidextrous Sling Pin Locking Knob
These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the...
H&K HK21 (7.62x51/.308) Locking Piece - New Factory, Old Stock
The HK21 standard 50-degree locking piece. Each LP includes the hardness "dot" to identify them as HK 21 locking pieces.