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The MKE Hammer Semi-Auto is the steel hammer that lives inside the trigger control group of Zenith's roller-delayed 9mm platforms like the Z-5RS. It's the piece that gets cocked by the bolt carrier on the rearward stroke and then drops to strike the firing pin when you break the trigger. If your original hammer is showing wear on the sear engagement surfaces or you're assembling a fresh trigger pack, this is the genuine part to reach for.
On a roller-delayed gun, the whole firing sequence hinges on the timing between the bolt group and the hammer. The bolt travels rearward after the rollers clear their recesses, and during that stroke it cocks the hammer against spring tension. When you pull the trigger, the sear releases the hammer and it swings forward into the firing pin. A worn or damaged hammer can throw off that engagement, so keeping a good one in the gun matters more than folks tend to realize.
This hammer is machined from steel and finished in black, cut to the same dimensions as the original component that ships in Zenith's semi-auto MKE and Z-5 series guns. Because these platforms are built on genuine MP5-pattern tooling, the fit is drop-in for the trigger housing it's meant for. It carries the T41-103 part number, which is the semi-auto version, so it's a straight replacement rather than a modified full-auto piece.
Swapping a hammer means opening up the trigger group, and the sear engagement geometry is nothing to eyeball. Zenith recommends this kind of work be handled by a qualified gunsmith who knows the roller-delayed system, and that's solid advice. Done correctly, a fresh hammer restores clean, predictable trigger function and keeps your build shooting the way it should.
It's made for Zenith's semi-automatic roller-delayed 9mm platforms, including the MKE Z-5RS and Z-5 series. Since these guns are built on genuine MP5-pattern tooling, the hammer is spec'd to drop into the semi-auto trigger housing it's designed for. If you're unsure about your specific configuration, confirm your trigger group setup before ordering.
This is the semi-auto hammer, carrying part number T41-103. The full-auto hammer is a separate component with different geometry for the automatic trigger control design. Make sure you're matching the right hammer to your trigger pack.
You can, but the sear engagement surfaces are precise and getting the timing wrong affects how the gun functions. Zenith recommends a qualified, trained gunsmith handle installation, and that's good guidance for anyone not fully comfortable inside a roller-delayed trigger group. A proper install restores clean, reliable trigger function.
It's machined from steel and finished in black, matching the factory component that ships in Zenith's semi-auto MKE guns. Steel construction is what you want here since the hammer takes repeated impact and gets cocked on every cycle. It's built to hold up over the long haul.
| UPC | 818300021751 |
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