Hard Air Mag had this posted just now.
Marauder now has different and incompatible threads for the psi gauge.
“
Basically, it’s a change of screw threads used on the pressure gauge. The new threads are not compatible with the old ones. This means that a “new” replacement gauge will also require a new Gauge Adapter to be fitted to an “old” gun.
Velocity Outdoor Senior Design Engineer John Solpietro explained to HAM that it was decided to change from tapered threads on the gauge to parallel (or straight) threads. The reason for this Benjamin Marauder pressure gauge change was to further reduce the potential for leakage of High Pressure Air from the gauge threads.
Velocity Outdoor tests every PCP airgun they make with a (minimum) 24-hour leak test. So the company was easily able to quantify the improvement produced by the new thread design and has made a “campaign change” of parts over all it’s US-manufactured PCP airguns”
https://hardairmagazine.com/news/benjamin-marauder-pressure-gauge-change-vital-information-for-owners/?utm_source=Hard+Air+Magazine+Subscription&utm_campaign=4daf932f93-EMAIL_CAMPAIGN_2016_12_31_COPY_01&utm_medium=email&utm_term=0_c48f609679-4daf932f93-360999889
Marauder now has different and incompatible threads for the psi gauge.
“
Basically, it’s a change of screw threads used on the pressure gauge. The new threads are not compatible with the old ones. This means that a “new” replacement gauge will also require a new Gauge Adapter to be fitted to an “old” gun.
Velocity Outdoor Senior Design Engineer John Solpietro explained to HAM that it was decided to change from tapered threads on the gauge to parallel (or straight) threads. The reason for this Benjamin Marauder pressure gauge change was to further reduce the potential for leakage of High Pressure Air from the gauge threads.
Velocity Outdoor tests every PCP airgun they make with a (minimum) 24-hour leak test. So the company was easily able to quantify the improvement produced by the new thread design and has made a “campaign change” of parts over all it’s US-manufactured PCP airguns”
https://hardairmagazine.com/news/benjamin-marauder-pressure-gauge-change-vital-information-for-owners/?utm_source=Hard+Air+Magazine+Subscription&utm_campaign=4daf932f93-EMAIL_CAMPAIGN_2016_12_31_COPY_01&utm_medium=email&utm_term=0_c48f609679-4daf932f93-360999889