Shooting Bench

Made this shooting Bench a while back. https://howtospecialist.com/workshop/free-shooting-bench-plans/  Came out pretty good!

Shooting Bench 02
DIY Shooting Bench

A little Stain Bleed, but overall not bad.

Shooting Bench 01
DIY Shooting Bench

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More HERE: https://viking-armory.com/?page_id=723

iGauging Plug for Firing Pin Protrusion Measurements

I was watching this video from School of the American Rifle: 5 Colt BCG Physicals (Video link starts at 16:06) and noticed that he had to modify one of the included extension shafts of the iGaging Digital Depth Indicator Set so the firing pin would not go into the threaded hole. That got me thinking about printing something up. This is what I came up with.

iGauging Firing Pin Plug01
iGauging Firing Pin Plug 01

The threaded plugs on the bottom don’t have the ejector notch the the top two have. I like the notched one better. I don’t have to remove the ejector to use. Both are sized to fit snug in the bolt face without getting stuck by the extractor. The plugs also help hold the bolt in place while testing.

iGauging Firing Pin Plug 02
iGauging Firing Pin Plug 02

The bottom is very smooth and will be able to help you get accurate and constant readings. AR-15 firing pin protrusion should be 0.028 to 0.036 Check out the reference page for more info.

It is difficult for me to hold everything in place to get an accurate reading. I think I will start working on a holder. More to follow.

You can download the 3D printer files HERE.

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All Documents posted on this site are for informational use only. If you make ANY modifications to your Weapons based on this site, you do at your own risk! If done incorrectly, you can render you weapon unsafe and / or unusable.

More HERE: https://viking-armory.com/?page_id=723

References Drawings BCG

BOLT CARRIER ASSEMBLY0001
BOLT CARRIER ASSEMBLY0001
AR-15 Gas Key 01
AR-15 Gas Key Diagram showing markups and dimensions for bolts and all gas sizes
AR-15 Bolt Carrier Group 02
AR-15 Bolt Carrier Group Diagram showing markups and dimensions for complete bolt length
AR-15 Bolt Carrier Group 01
AR-15 Bolt Carrier Group Diagram showing markups and dimensions for 2 internal bolt holes, vent hole,
13004787 BOLT ASSEMBLY0001
13004787 BOLT ASSEMBLY0001
AR-15 Bolt Diagram 01
AR-15 Bolt Diagram showing markups and dimensions for Cam Hole, Boat tail Interior, and Bolt Ring
AR-15 Bolt Diagram 02
AR-15 Bolt Diagram showing Boat Tail, Bolt Face and Firing Pin Hole Dimensions and markups
8448510 BOLT0003
8448510 BOLT0003
AR-15 Bolt Cam Pin 01
AR-15 Bolt Cam Pin Diagram showing markups and dimensions for diameter and hole
AR-15 Extractor Diagram
AR-15 Extractor Diagram with Markups
AR15 8448503 PIN, FIRING0001-2048
8448503 PIN, FIRING0001-2048

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All Documents posted on this site are for informational use only. If you make ANY modifications to your Weapons based on this site, you do at your own risk! If done incorrectly, you can render you weapon unsafe and / or unusable.

More HERE: https://viking-armory.com/?page_id=723

AR-15 Bolt Carrier Diagrams – Working Document

I am using this as a working documents to be used as I inspect a rifle.

Bolt Carrier Group Slide Deck
Bolt Carrier Group Slide Deck
AR15 Gas Key Measurements
AR15 Gas Key Measurements
Bolt Carrier Group Bolt Test - Slide Deck
Bolt Carrier Group Bolt Test – Slide Deck
Bolt Carrier Group Bolt Diagram 01 - Slide Deck
Bolt Carrier Group Bolt Diagram 01 – Slide Deck
Bolt Carrier Group Bolt Tail Measurements
Bolt Carrier Group Bolt Tail Measurements
Bolt Carrier Group Bolt Tail Measurements
Bolt Carrier Group Bolt Tail Measurements
Bolt Carrier Group Bolt Diagram 04 - Slide Deck
Bolt Carrier Group Bolt Diagram 04 – Slide Deck
Bolt Measurements Boat Tail and more
Bolt Measurements Boat Tail and more
AR15 Bolt Shoulder Measurement
AR15 Bolt Shoulder Measurement
AR15 Bolt Face Measurements
AR15 Bolt Face Measurements
AR15 Bolt Parts
AR15 Bolt Parts
AR15 Bolt Ejector Diagram
AR15 Bolt Ejector Diagram
AR15 Extractor Measurements
AR15 Extractor Measurements
AR15 Firing Pin
AR15 Firing Pin
Firing Pin Depth Test
Firing Pin Depth Test

Hit us up with comments or requests

All Documents posted on this site are for informational use only. If you make ANY modifications to your Weapons based on this site, you do at your own risk! If done incorrectly, you can render you weapon unsafe and / or unusable.

More HERE: https://viking-armory.com/?page_id=723

On Line References AR Platform

REF:
Videos:

School of the American Rifle / Instructor Chad

BCG Specs & Holes by KB32 Tactical

Diagrams:

TM 9-1005-249-23&P

Ivan The Troll

The Gatalog

M16 BCG Drawing Set.pdf

Forums and Discussions:

Forum at AR15.com

SOTAR Facebook Public Page/Site

Hit us up with comments or requests

All Documents posted on this site are for informational use only. If you make ANY modifications to your Weapons based on this site, you do at your own risk! If done incorrectly, you can render you weapon unsafe and / or unusable.

More HERE: https://viking-armory.com/?page_id=723

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