Blow forward
Blow forward is a
Description
The vast majority of repeating firearms have their barrel fixed to the receiver or largely immobile in relation to the frame, with the breech face (as part of a moving bolt or slide) moving within the frame against the barrel. In contrast, the frame of a blow-forward firearm incorporates a fixed breech face, with the barrel being mobile and sliding away from the breech (frame) during the weapon's cycling.
Due to the reduced mass of rearward-traveling parts coupled with the increased mass of the forward moving parts (barrel in addition to bullet and propellant gasses), recoil energy is significantly greater than other operating mechanisms. The barrel and spring are generally the only moving parts. Most blow-forward guns rely partially on the inertia of the barrel as the rest of the firearm recoil away from it.[2][3]
Examples
The first blow-forward firearm was the Mannlicher M1894 pistol and protected under U.S. patent 581,296. The principle has been used in a few other weapons, including:
- Schwarzlose Model 1908
- Hino Komuro M1908 Pistol
- Mk 20 Mod 0 40mm automatic grenade launcher.
For a list of blow-forward firearms, see List of blow-forward firearms
See also
References
- ^ Hammerfell, Richard (7 March 2015). Firearms Illustrated - Pistol Edition. Digital Services. p. 166. GGKEY:PKJGL3K97WH.[permanent dead link][ISBN missing][dead link]
- ^ Smith, B. (7 March 2015). History of the Handgun. Digital Services. p. 1896. GGKEY:5F3APLD7J8C.[ISBN missing][dead link]
- ]
External links
- How Does it Work: Blow Forward Forgotten Weapons