H&K Heckler & Koch

New HK German MP5 40/10/.357 Magazine Clamp Fits all MP5 40/10 Magazines. Holds two magazines together for immediate access.

New HK German MP5 40/10 -2 roller Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.

New HK German MP5 40/10 +4 roller Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.

MP5 40,10 +2 Roller New HK German MP5 40/10 +2 roller. Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per...

New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten-filled German HK and the...

New HK MP5 40/10/.357 Latest Production 1.4mm Extractor This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many out-of-spec clones out there...

H&K MP5 40/10 Flash hider - 3-Lug Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5

New HK German MP5 40 or MP5 10mm High Impulse Locking Piece Marked #25 This is the 60-degree locking piece that is used for high-impulse ammo, commonly found in +P or +P+ ammo. This locking piece is...

HK German MP5 40/10 8mm Roller - Factory New Hard to find and needed for headspace adjustments. Great spare to have on hand and no longer in production. Each roller is priced per piece.

MP5 40, 10 Bolt Hold Torsion Spring This is the factory spring used to activate the bolt hold-open lever. Great spare and needed part to have on hand.

New HK German MP5 40/10 -4 roller Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.

H&K MP5 40/10 Safe & Semi Only Trigger Group & Housing - Clipped & Pinned