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Proto-Concept C01

2020–2023 · Blade / Muscleback · 5–PW · 7-iron 32°

Proto-Concept C01 irons
Photo: Proto-Concept

Factory specifications

Factory specifications for Proto-Concept C01, club by club
ClubLoftLieLengthBounce
525°60.5°38"3°
628°61°37.5"4°
732°61.5°37"5°
836°62°36.5"6°
940°62.5°36"7°
PW45°63°35.5"8°
Build
forged one-piece muscle back with forged-in titanium rod (5-7 irons), S20C carbon steel with inner titanium (#5-#7), S25C carbon steel (#8-PW)
Source
Maker’s standard RH men’s steel build, via loftchart.com

Loft progression

Proto-Concept C01 loft by club: 5 25°, 6 28°, 7 32°, 8 36°, 9 40°, PW 45°0°10°20°30°40°50°25°5+328°6+432°7+436°8+440°9+545°PW
Loft for each club, 5 to PW. The small numbers are the loft added from one club to the next.

Have this set?

Bring it by and we’ll check it against this sheet on the loft-and-lie machine, or get a trade-in offer on the spot. Numbers here are the maker’s standard right-hand, men’s steel-shaft build.