Blank Firing Adapter for an M-1919a-4
| If you use your 1919 for re-enacting (as do I) you need to fire blanks. The 1919 is relatively easy to adapt to blanks with the addition of 2 parts. First is a booster assembly with the proper sized hole to assist with recoil, and a blank cartridge guide, as most crimped blanks are much shorter than live ammo. |
| The red line shows the stock .308 cartridge guide. The green arrow shows the built up area to compensate for the shorter blank round. I found that the initial slope on the very left was the most critical for proper feeding of the cloth belt. I also found that the blanks fed much better if I continued the slope, although a much gentler angle, all the way to the hard stop on the right. Total time to weld up, grind down and fit the guide was about 45 minutes. |  |
The business end of the 1919. A standard booster is welded shut, and a hole (I started at 3/32nds... and it worked) was drilled to assist in holding back gas pressure to help cycle the gun. Typically the bullet would help force gasses back. I think it is more common to tap out the booster and install allen setscrews with holes drilled into them. This lets you adjust the orifice without re welding the booster. I didn't have the proper size tap for that method.. so I welded it shut. I'll probably tap it out eventually. 600+ rounds so far and the gun cycles fine as is. |
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