I bought these recently from Andy (airgunner.177).
They look and feel superb and have improved the handling of my 45 by 10^9!
If you'd like a pair, drop him a PM on here.
http://pic90.picturetrail.com/VOL217.../413887589.jpg
http://pic90.picturetrail.com/VOL217.../413887588.jpg
http://pic90.picturetrail.com/VOL217.../413887587.jpg