hi just made 3 in uk
used 8mm plummers gas pipe from b&q
6mm brass rod cap ends for gas pipe soldered in place.
tap washer orings
the groves in the piston
char cloth was made out of an old denim shirt
this makes the whole thing easy to work
i did a comparison with a flint and steel and fire piston side by side the mset up time was almost the same but the fire piston got the fire going in around half the time which was a suprise at the time as i have made fires often with the flint and steel (swedish) since 1985
used 8mm plummers gas pipe from b&q
6mm brass rod cap ends for gas pipe soldered in place.
tap washer orings
the groves in the piston
char cloth was made out of an old denim shirt
this makes the whole thing easy to work
i did a comparison with a flint and steel and fire piston side by side the mset up time was almost the same but the fire piston got the fire going in around half the time which was a suprise at the time as i have made fires often with the flint and steel (swedish) since 1985