RH – 4-GW – Mizuno JPX 921 Hot Metal Pro – Regular (5.5) – Project X LZ Blackout


1 in stock

The JPX921 Hot Metal Pro irons pair Mizuno’s fastest ever ball speeds with a straight, stable flight and controlled landing angles.

SKU: 210927.RSR3.01.0800-1 Categories: , Tags: ,

This set is a right handed set and includes 4-GW. The flex of the shaft is Regular (5.5) and the shaft is a Project X LZ Blackout (please note this shaft is the color black).

This product is available for immediate shipment.


Club # 4 5 6 7 8 9 PW GW
LH Opt Opt Opt Opt Opt Opt Opt Opt
Loft º 19º 22º 25º 29º 34º 39º 44º 49º
Lie º 60º 60.5º 61º 61.5º 62º 62.5º 63º 63º
Length “ 38.5″ 38″ 37.5″ 37″ 36.5″ 36″ 35.5″ 35.25″


  • Chromoly 4140M: With its high strength to weight ratio and malleability, Chromoly allows a for high strength face with a bendable hosel for fitting.
  • Harmonic Impact Technology: Fine tuned head geometry delivers ideal impact feel and feedback.
  • Stability Frame: Open at the heel portion to enhance stability and launch, while producing a tour preferred vibration and sound.
  •  Seamless Cup Face : Thinned areas revolving 360 degrees around the perimeter increase rebound area for maximum ball speed across the entire face.
  • CORTECH Design : Optimized face thickness distribution to maximize COR AREA.
  • Variable Sole Thickness : Increase overall face flex area for add CORAREA.
  • Acoustic Sound Ribs : Precisely dial in specific vibration patterns for a solid, explosive impact sound.
  • Beveled Trailing Edge : Aggressive relief on the trailing edge for reduced turf drag.
  • Pearl Brush finish : Chrome plating with a more durable pearl finish to soften the JPX919’s precise lines in sunlight.