"Inland" Manufacturing M1 Carbines - 1st hand experience

[Sleeplessnashadow]

Sent an e-mail yesterday to make sure they received it. Here's the response I received.

" We have made several changes to our specifications, the primary is the hardness. The USGI Specs the hardness of the bolts to be Hrc 38- 42, however all USGI bolts that I have inspected have been Hrc 42. The problematic bolts that we have been seeing in our line has been bolts with a Hrc of 38-39, while they are still within specs, they were the problem children and a few of them were peening around the cam surface and left lug.
We have tightened our specs to 40-43 Hrc on the bolts and we have also modified the actual surface area of the cam and the slide so that the surface area is increased to minimize wear. Our test results have been very positive with zero deformation. Our entire production has the new modification and the components for your rifle will be changed to the new ones. Fortunately the percentage of bolts that we found in the 38-39 Hrc range was very small, and many that tested at 38 Hrc showed no signs of problems, we have chosen to be pro-active and make the changes that I mentioned.

I am expecting the shipment of the new spec components at any time and your rifle will be headed back your way. We appreciate your support in this matter as well as your patience!"



Jim