Here is a picture of my 581 series Mini-14 Tac-Folder. It left the Ruger factory in 4Q2010 and I am the original owner. Adders are: 4 lb trigger polish and take-up decrease, adjustable trigger stop, bi-pod/grip, flop stopper/barrel heat-sink, 30 round Thermold mag(s), tactical mag release (thanks 45K20E4!), Millet SP-1 Red Dot Scope, Weaver See-Thru scope rings, silicone rear buffer, aluminum rubber laminate front buffer, stock bedding, heat shielded fore-stock cover and Rapid-Adjust nylon sling. Quality problems from factory I have corrected: remove folder stock wobbles, secondary sear/hammer improperly machined, rear sight shim/align (was unable to adjust far enough to the right side). Trig

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what are u using for you barrel strut?

I made it. The strut is cast aluminum. It's machined to contact the lower portion of the barrel including the area in front of the sight. It attaches to the gas block by the sling loop hole. I can't tell much difference in the shooting pattern (gun is setup for fast target acquisition) but it sure does keep the barrel cool due to the large increase in cooling surface and aluminums great thermal transfer properties. It's a great heat sink, pulls the heat right out. It is held to the barrel with stainless steel cable ties with black electrical shrink tubing around them. Except for the contact areas, it is painted in a textured satin black.

Trig

I really like the looks of it

u should hook up with one of these strut guys to some how make it functional as a strut

im sure if you fastened it to both the gas block and barrel more securely you would get results..but then again... that maybe the hoppes talkin