Lock Medium Sinking Fly Line
Sinks at 4 inches per second, it tracks level through feeding lanes and casts smoothly when false casting.
- Free Sunray Lock fly reel spool RRP £19.99
- 250' of PE low diameter backing
- 90' Fly line with 2 reinforced welded loops
Get down to active fish without guessing. This line sinks at 4 inches per second, giving a consistent, predictable drop that keeps your flies in the strike zone longer. It stays smooth through the cast and helps cut tangles, making it a strong choice for exploring varied water, from shallow edges to deeper lanes.
Plugs into the Sunray Lock reel or wind it onto your own reel's spool.Stable front turnover, heavy belly sinks quick, carries flies medium depth.
#5-#6 (36') • #7-#8 (38')
#5- 17g • #6- 19g • #7- 21g • #8- 23.5g
90'
250' PE low diameter backing
What fishers say about the Lock Medium Sinking Fly Line
UK Customer
Cant believe this line - easy to cast, smooth, perfect line to use
USA Customer
I'm been using the Medium Sink for a few weeks now and they have become my go to lines.Even my casting has improved.I now have 4 different lines from Finner and love them all.
EU Customer
This line is absolutely brilliant for casting and sinking I would recommend to anyone and if your a beginner your casting will improve with Finner lines.
Wind it onto your own fly reel or...
Plug straight into your Lock reel
Plugging a Lock fly line into a Lock reel is effortless. The self-locating, self-aligning design means no knots, no tangles, and no hassle—just a seamless connection. Simply align the spool, click it into place, and you’re ready to fish in seconds. It’s the fastest, easiest setup you’ll ever use.
It's not just our coatings that are bullet proof
Reinforced welded loop
Our welded loops were already the strongest on the market. That wasn't enough for us, we went one step further and wrapped our welds in a micro thin film of protective tubing. Supple, strong and slim.
Plug your fly line straight into a Lock Reel
Lock Fly Reel
I needed the fly line for a competition. I ordered on Friday and it was on my door matt Saturday morning, amazing
I couldn't believe how quick it was delieverd. It felt like I had just placed the order and it was there! All the way from the UK in a matter of days.
Despite Brexit I took a chance ordering from this UK company. Yes, I had to pay taxes but it's the best fly line I have ever bought and it was cheaper than the American brands.