Author Archives: GsT

Machining an AR-15 lower receiver from a raw (“0%”) forging

Ray Brandes has written an excellent treatise on machining an AR-15  lower receiver from an inexpensive “0%” forging.  What follows is a photographic expo of following those instructions (mostly) to create a new  AR-15 lower receiver. For the most part, … Continue reading

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Basic Marlin T-900 Trigger Job (Marlin 917V)

I just picked up a Marlin 917V, and after two shots I knew something had to be done about the trigger.  On my first attempt to shoot I actually stopped pulling because I thought the safety was on!  Regrettably, I … Continue reading

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Modifying an AR-15 bolt for .45 ACP

To build an AR-15 in .45, the bolt must be opened up to accept the larger case.  This also requires some work on the extractor.

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Making a chamber reamer

I need a chamber reamer to cut the chamber for the DI .45 carbine, so now’s a good time to demonstrate making one. The first step is to acquire chamber drawings. These can be found in a number of places. … Continue reading

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Detailed re-assembly of the 1911

Having detailed the complete disassembly of a 1911, it’s only fair to show you how to put it back together.  Much of the process can be considered “disassembly in reverse”, but there are some details that we need to pay … Continue reading

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