Greetings to all !
I decided to provide more detailed information about construction changes during production period, and try to display all of them
Factories
1)Izhevsk, plant #74. Production period : 1940 – autumn 1941
2)Tula, plant #314. Production period :1940 – autumn 1941 –-evacuated--> Mednogorsk, plant #314. Production period : December 1941 – beginning of 1945
3)Podolsk, plant #460 (mistakenly considered as Kovrov). Production period : 1940 – autumn 1941
One part of the factory was evacuated to Zlatoust, plant #385. Very small quantity of rifles was produced there at the beginning of 1942 . Another part was evacuated to Izhevsk
Types
SVT-40. Production period. 1940 – June 1942
Sniper SVT 40. Production period. March 1941 – October 1942
AVT-40. Production period. June 1942 -1945. But some examples were produced in late 1941
Construction changes
1) Receiver types.
Picture was taken from
http://forum.guns.ru (belongs to Petet 1)
- 1 - Early type (1940- mid 1941)
- 2 - Early war type , was introduced after war beginning (mid 1941- early 1942)
- 3- Late type. Was used at plant #314 in Mednogorsk. Late SVT-40’s and all AVT’s had this type of receiver
Rails. Rails were machined at all SVT produced by all factories (Tula, Izhevsk, Podolsk) until war.
Soon after war beginning after special instruction was issued, construction was simplified. So all factories eliminated rails on regular rifles. But some Tula\Mednogorsk regular rifles, produced in 1941 after this instruction, and in 1942, are observed with rails. It is supposed, that it is connected with production of sniper rifles at this factory. Possibly sniper rifles that did not match all criteria’s, were not notched, and issued as regular rifles.
Also I must mention simplified type of the receiver produced at Podolsk factory #460. At first, they eliminated rails as all other factories. But then, they constructed their own simplified receiver. You can see difference below.
2) Muzzle break
- Early type.
- Late type. Late type was designed in early 1941. At regular rifles it appeared at late Podolsk rifles in 1941. Possibly it was used by Tula factory before evacuation, but most likely it was put to mass production at the beginning of 1942 in Mednogorsk
3) Top hanguard
- Early (8 holes), was used in 1940-early 1941
- Late (7 holes) , was used since early 1941
4) Stock
Early – 1940-1943 (possibly, early 1944). Until 1943 all stocks were produced with swivel at the bottom. When production of AVT’s was started, they were additionally notched for full auto mode. Such stocks were additionally marked with A letter.
Late – mass production since 1944. Have Mosin style sling slot. Only one exception of this rule – such stocks were designed by Podolsk factory #460 soon after war beginning, so late 1941 rifles produced by this factory, had such stocks. Soon factory stopped production of SVT’s, as Izhevsk, and Mednogorsk begun to use such type of stocks only in 1944.
5) Trigger guard
- early (1940-early 1942), narrow trigger guard
- late (since early 1942, produced only by Mednogorsk), wide trigger guard.
6) Safety
- Early (1940-early 1942, possibly late 1941), with hole
- Late (since early 1942, possibly late 1941, produced only by Mednogorsk), without hole. AVT safety also have bevel for auto fire and additionally marked with letters A (auto fire) and O (semi)
7) Swivel
- Early, 2 piece (1940 – late 1942 or early 1943)
- Late, 1 piece (since late 1942 or early 1943 produced only by Mednogorsk,)
8) Rear sight leaf
- Early, notched (1940-early 1942)
- Late, without notch,(since early 1942, produced only by Mednogorsk)
9) Plum bolts.
Many test rifles, created personally by Tokarev had plum bolts. Plum bolts are also observed at some 1941 rifles. But most rifles produced before 1942 had white bolts. Mass production of plum bolts was started in 1942 in Mednogorsk