I am thinking of upgrading my PMR's barrel. Now i have no clue what to get, Freak kits are good but i have a fairly small budget of around £40 so if you could just post any ideas and a rough price that would be really helpful.
Warped UN1TEC Barrel are within your budget, for £35.00 you get a 14'' Front which is bored all the way through the barrel you can choose from 3 different bore sizes, 685, 689, or 693 so you can match the paint to your barrel, and you also get 1 barrel back to suit the thread on your marker.
Why not a freak barrel with .691 insert then buy the rest at a later date?
Nice thing about your freak is if you change your marker you only need to change the back to suit the new thread (if your marker has a different thread)