ARP- 9 Tracer Unit

[HellJumper]

Hey guys, I was wondering if any of you had a chance to see what tracer units can fit on the arp-9 due to the threads being a 1/2" behind the barrel shroud? 

 

[alex90]

why not try looking at this as an option

https://www.fire-support.co.uk/product/madbull-ultimate-3-in-1-hop-up-chamber-unit-including-led-module

yes they are a tad expensive but they do work very well