British Special Forces 3rd Gen Integrated Upper Receiver’s from Colt Canada

takeyerswing said:
Seconded! Approximate cost Nordic?
Click to expand...

Unfortunately these are not an in-expensive tool to replicate.
We cannot compete with cheap knockoffs made in Asia (and dont want to).

These are a quality tool made for years of service.

For the first production run, we will open a pre-order and for those that order, we will keep the price under $200.
Regular pricing on them will be $239.00.

Considering the work involved, I feel that's a very fair price on them.
 
Was thinking if using the above wrench, barrels over 14" won't clear/pass 1-1/4 socket. Unless using a 1 1/4 crowfoot extension with 1/2" drive could be possible.
Are there plans of manufacturing this type of wrench?

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Happy to see this tool commercially available now. Makes the mrr/iur platform more end user versatile to the regular joe.
 
Crowfoot is very common and cheaply available at many tool vendors - sometimes individually.

Just one concern from your pic - they should almost always be at exactly a 90 degree angle from the torque wrench (unless you're calculating for the additional torque). At 0 degrees, your adding considerable leverage and subsequently more torque to the fastener.
 
That 90-deg torque application on a torque wrench adapter has been a long debate. In my milspec builds, I still follow how it was stated and drawn in the manuals. Torque wrench set to 40 ft-lb and parallel with adapter.
 
If the 40 ft-lb spec called for a particular length crowfoot run parallel on a particular length torque wrench, then that would be correct. However The crowfoot is usually run at exactly 90 degrees to avoid extra leverage.

The formula to calculate what to set the torque wrench to follows (example is 18.5” torque wrench, 3” adapter):

Torque Wrench Length X Torque Desired) = (18.5 x 40) = 740
Divided by:
(Torque Wrench Length + Extension Length) = (18.5 + 3) = 21.5 inches
740 / 21.5 = 34.42 ft.-lbs.

That’s 16% in this example. Most automotive fasteners expect a 10% variation, maybe firearms are more tolerant.
 
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