Machine guns introduction
Austria
 Schwarzlose M07 M07/12
 Steyr-Solothurn MG 30
 Steyr AUG /Hbar
Belgium
 FN Model D
 FN Minimi
 FN MAG
 FN BRG-15
China, People's Republic
 Type 67 GPMG
 Type 88 GPMG
 Type 95 LMG
 Type 77 HMG
 Type 85 HMG
 W-85 HMG
 Type 89 HMG
 Type 02 / QJG 02 HMG
Czech Republic
 ZB 26
 ZB 53 / Vz.37
 ZB 60 new
 Vz.52, Vz.52/57 upd
 UK Vz.59 upd
Denmark
 Madsen LMG
 Madsen-Saetter
Finland
 L/S-26
 Valmet KvKK 62
France
 Chauchat CSRG M1915
 Hotchkiss Portative
 Hotchkiss M1914
 Hotchkiss M1922 LMG
 Hotchkiss M1930 HMG
 MAC M1924/29
 AAT Mod.52
Germany
 MG 08, MG 08/15, MG 08/18
 MG 13
 MG 34
 MG 35/36 Knorr-Bremse
 MG 42 and MG 3
 HK 21 and 23
 HK MG 4
Great Britain
 Vickers Mk.I
 Hotchkiss Portable Mk.I
 Lewis
 Vickers-Berthier
 Bren
 L86A1 SA-80 LSW
Israel
 Dror
 Negev
Italy
 Fiat-Revelli M1914 M1935
 Breda M1930
 Breda M1937
Japan
 Type 03 & Type 92
 Type 11
 Type 96 & Type 99
 Type 62
Mexico
 Mendoza
Russia / USSR
 Maxim M1910/30
 Degtyarov DP DPM RP-46
 Degtyarov DS-39
 Degtyarov RPD
 Kalashnikov RPK
 Kalashnikov RPK-74
 Gorjunov SG-43 SGM
 Kalashnikov PK / PKM
 Pecheneg
 DShK DShKM 12.7
 NSV 12.7 'Utes'
 Kord 12.7
 KPV 14.5
Singapore
 STK Ultimax 100
 CIS .50 MG
South Africa
 Vector SS-77 / Mini-SS
South Korea
 Daewoo K3
Spain
 CETME Ameli
Sweden
 Knorr-Bremse m/40
Switzerland
 W+F Lmg 25
 SIG KE-7
 Steyr-Solothurn MG 30
 SIG MG 50
 W+F MG 51
 SIG MG 710
USA
 Benet-Mercie M1909
 Lewis
 Browning M1917 M1919
 Browning M1918 BAR
 Johnson M1941 M1944
 M60
 M16 LSW / LMG
 M134 Minigun
 XM214 Microgun
 Stoner 63
 M249 SAW
 M240
 Mk.48 mod.0
 Browning M2HB .50 cal
 XM312 .50 cal
 LW50MG

 Gatling, Minigun, Vulcan

all texts and some pictures
copyright © 1999-2009
by Max R. Popenker
and can not be used without author permission

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MAC M. 1924/29 light machine gun (France)

MAC Mod. 1924/29 light machine gun, left side

Caliber	7.5x54 m29
Weight	8.9 kg
Length	1070 mm
Barrel length	500 mm
Feed	box magazine, 25 rounds
Rate of fire	450-500 rounds per minute

As a result of the general obsolescence of the 8mm rimmed cartridge and the need for a better light machine gun, soon after WW1 the French army started its infantry rearmament program with the development of a new cartridge, suitable for use in automatic weapons. The basic pattern of new ammunition was adopted in 1924; it was a 7.5x58 M1924C rimless cartridge. In 1924 after extensive trials the French army adopted a light machine gun, developed since 1921 by another state-owned armory, Manufacture d’Armes de Chatellerault, or MAC for short. Production of the new gun, designated Fusil Mitrailleur Mle 1924 (or FM M1924 in short) commenced in 1925.
During the next few years, the new cartridge caused certain problems, mostly because it was dimensionally very close to the German 7.92x57 ammunition (used by certain French units in ex-German MG.08/15 machine guns), so it was possible to load and fire German 7.92mm ammunition from 7.5mm French guns – although rarely more than once per gun. To avoid further problems, in 1929 the French army adopted a modified version of the 7.5mm round, with the case shortened to 55mm, so accidental loading of the longer German ammunition became impossible. MAC M1924/29 light machine gun served as a standard light machine gun for French army through the WW2 and Indo-china conflict of 1950s.

The MAC Mle.1924/29 (Fusil Mitrailleur Modèle 1924 M29) light machine gun is a gas operated, air-cooled, selectively fired weapon. It fires from an open bolt. The barrel can be detached from the weapon only in armory. The basic action consists of a long-stroke gas piston, located below the barrel, enclosed within a gas tube. The gas system is non-adjustable. Locking is achieved by tilting the rear of the bolt up and into a locking recess cut in the roof of the receiver. The tilting motion of the bolt is controlled by dual swinging links, which connect the rear of the bolt with the operating rod that forms the rear extension of the gas piston. The firing pin is permanently fixed to the vertical projection made on the top of the operating rod; therefore, it can strike the primer only when bolt is fully in battery and locked. The trigger mechanism has two triggers, which produce different modes of fire – pull on the front trigger results in semi-automatic fire (single shots), while pull on the rear trigger results in automatic fire. A manual safety lever is located above the triggers and locks both triggers when engaged.
This machine gun is fitted with an inertia-type rate reducing mechanism. The feed system uses dual-row box magazines, inserted from the top. Fired cartridge cases are ejected to the right through an ejection window in the receiver. The magazine aperture has a steel dust cover, which opens up forwards when gun is loaded. The  same dust cover carries an additional hinged cover on its right side, which closes the ejection aperture.
Standard sights include a front sight, installed on the barrel, and a tangent-type rear sight with a diopter aperture, located on the top of receiver behind the magazine housing. The sight line is offset to the left since the gun uses top-fed magazines. Standard furniture includes a short wooden forend below the front of receiver, a wooden butt with a hinged shoulder rest and a pistol grip. A folding bipod is attached to the barrel just behind the front sight base. 

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