GSS 57.8: BOTTOM METAL MODIFICATIONS
There are NO required textbooks for this class
Required Tools & Supplies:
- Safety glasses.
- At least one trigger guard and floor plate for a Mauser, Springfiled or an Enfield-must be made of steel (NOT STAMPED).
- A set of number drills and tools for machining in a lathe and mill, ball endmills 5/16 & ¾”.
- Hand tools for working on bottom metal: files, hammer, punches, etc., belts for a 1” x 42” sander would be very helpful.
- If you can TIG weld, bring your helmet.
- A few pieces of round and flat steel, or be prepared to buy some locally.
- An assortment of round rod and coil spring stock-available from Brownell’s.
- Optional-a very small (1/16”) ball bearing-available from Brownell’s.
- A piece of aluminum 1” X 4” X 15”.
Student Learning Outcome:
At the conclusion of this course each passing student will be able to:
- Alter a guard bow to an attractive, streamlines shape as found on high-grade double guns.
- Alter original floor plate release to an attractive practical system.
- Reshape welded areas of guard, to fill holes and/or alter contour for more attractive appearance.
- Make, install, and fit a hinged floor plate.
- Trigger guard shapes
- reshaping with power tools and by hand
- floor plate release systems
- floor plate hinge systems
- filling holes
- lengthening and shortening floor plates
- contouring of trigger guards
- normalizing after welding
How the class works:
In lecture, we will study the various firearms and/or systems involved. To reinforce
what we have studied, assignments will be made involving repair, refinishing, and/or
modifications to the studied firearm parts.
To simulate real life situations, there
will be due dates on all assignments. The assignments will approximate problems in
the field. Many times the assignments will force you to think, i.e. I may assign the
design and fabrication of a tool or parts. I will tell you what it must do, and the
tool or part must be made to work.
Everyone starts off with an “A” and everyone is expected to get an “A” for a final grade.
This is a potentially dangerous profession, so you must do the assignments to industry
standards or better.
- Everyone must have a set of finished notes by the last day of class. If they are on paper, they must be typed or written very legibly in ink, in a binder or folder, and have line drawings of systems for clarity when needed. They can also be audio, video, or on a computer disk, but if they are, they must have an index. They must also contain most of what was covered in class. If they possess all the mentioned criteria they are “A” notes. If they are missing information, inbound, or electronic with no index, your grade maybe lowered.
- Your projects must be completed in order to be graded. They will be graded on accuracy, appearance and finish.
A note on notes:
They must be good and permanent- NO PENCIL NOTES. You can get around this note
requirement by obtaining the AGI professional series course on the subject, i.e. the
shotgun course for any of the shot gun classes etc. Remember, bad notes and your
grade will suffer.
Method of Evaluation:
Grading in this course will be based on the following:
Class Participation and Attendance: 10%
Classroom notes: 20%
Classroom projects: 70%
90-100% = A
80-89% = B
70-79% = C
60-69% = D
below 60% = F
Incompletes and etc.:
Incompletes are at the discretion of the instructor.
NO LIVE AMMUNITION IN CLASS:
NO! NO! NO! If you need ammo to test fire a firearm, you turn it in to an instructor
UPON ENTERING THE CLASSROOM. Failure to do so will result in your dismissal from the