Master Gunsmith, Bob Dunlap is a renowned expert on many firearms. In this course, Bob discusses the design history of the Ruger® SR series pistols. We get our first look at the various pistols and Bob shows us some of the similarities and differences in the designs.

For those of you looking for practical instruction in how to get your Ruger® SR auto pistol completely apart, clean, troubleshoot, make common repairs, and get your gun back together  and operating properly with none of those pesky and embarrassing leftover parts, you have come to the right place. Bob uses a cut-away gun so that you can actually see how the internal parts function and their relationship to one another. This will help you to understand the design and function of these guns.

If you want the long course, on the design, function and extensive repair of this gun and firearms in general, look into our basic 108 hour Professional Gunsmith course.

Among the items covered in this DVD are:


  • Bob outlines the history of Sturm, Ruger® and the lineage of the SR series guns
  • Designed and made in America, Bob gives us some of his opinions in regard to the newest Ruger® full size auto pistols.


Design & Function

  • A cut-away gun is used to illustrate and demonstrate the guns™ design and function, including the mainspring and fire control system
  • The operation of the two firing pin blocking safeties is shown, trigger and magazine actuated, and explained
  • How the trigger bar/disconnector, sear and the hammer operate and interact is shown and demonstrated
  • The loaded chamber indicator on the LC9® is shown and discussed
  • The loading, chambering, ignition, extraction, ejection, reloading cycle is shown and described
  • Two things an extractor MUST do on a locked breech centerfire pistol
  • The cam lock system shown and explained
  • Understand how the built in safety systems operate in the pistol
  • Magazine catch operation shown


  • Bob demonstrates complete disassembly of the SR9® pistol, special attention given to parts that should not be disassembled under normal circumstances & why
  • Noted are parts under spring tension so they are not launched into Never Never Land
  • Use of a digital camera or cell phone camera during the disassembly is very useful during the reassembly process
  • Magazine removal and disassembly
  • Slide, barrel, and recoil spring removal
  • Learn how to remove the front and rear sight
  • Slide disassembled, and loaded chamber indicator removed
  • Extractor removed
  • Firing pin and safeties removed
  • Backstrap insert removed
  • Fire control and insert removed and disassembled
  • Magazine catch removed
  • Striker assembly disassembled

Cleaning & Lubrication

  • AGI cleaning & lubrication methods shown, along with the reasons for their use
  • After cleaning, dry with air gun, a hair dryer, or in the oven on Warm ~185-200 degrees (metal parts ONLY)
  • What oil AGI likes to lube the gun with during assembly


  • Bob shows us how to reassemble the SR9®
  • Making sure you have no parts left over
  • In cases where the order of assembly is important, Bob shows you the correct order
  • Assembly is generally in reverse order of disassembly
  • Assemble all of the subassemblies before inserting into the frame
  • Getting the right pieces in the right places, the easiest way possible
  • Using the proper tool to help you line up the parts to accept their pins
  • Magazine reassembly
  • Striker assembly reassembled
  • Fire control and insert assemblies reassembled
  • Slide reassembled
  • Magazine catch replaced
  • Fire cntrol assembly and insert reinstalled in frame
  • Backstrap reinstalled
  • Final assembly and function checks

Final Thoughts and Wrap- up

If you noticed how often the terms explanation, and demonstration are used, you may be getting some idea of why this course is a must-have for any Ruger® SR9®/SR40® pistol owner, or someone who intends to be.

View a sample of the content of this course below.

Weight0.25 lbs
Dimensions7.56 × 5.44 × 0.63 in


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