I won't go into the tweaks instead will get 2 birds with on stone the cycling with low power cheap shells and 922r compliance for the VEPR 12 the first 3 to 4 items on the list should do it.... CORRECTIONS IF I AM WRONG PLEASE. Parts associated with the firing and trigger groups should fix cycling problem...
The LIST:
922R compliance
VEPR 12 SGM 12 RD MAGAZINE -
Made in the USA Counts for 3 parts
43.00
GAS PISTON VEPR 12 PUCReplaces the factory Vepr 12 gas puc to give you 1 922r compliant part.
Made in the USA. Counts as 1 part
19.00
TRIGGER GROUP- MODIFIED SAIGA/VEPR FIRE CONTROL GROUP
This is a drop in trigger group for Saiga shotguns (12's, 20's and 410's), Vepr Shotguns, and all Saiga 223, 5.45x39, and 7.62x39 Rifles.
Made in the USA Counts as 3 922R compliant parts
45.00
Full power recoil spring replaces your worn out OEM factory springs.
Made in the USA. 1 Spring per order. Counts as 1 part
5.95
CAROLINA VEPR 12 TACTICAL BILLET TRI-RAIL
Aluminum Tri-Rail replaces the lower factory forearm (Note: the upper forearm stays in place).
Made in the USA and counts for 1 922r compliant part.
119.95
CHOKE SAIGA/VEPR 12 MUZZLE BRAKE ADAPTER "FULL CHOKE"
Made in the USA. Screws on to the existing factory threads. Counts as 1 part
54.95
BRAKE LOCK NUT(BARREL NUT) FOR SAIGA/VEPR 12- RUSSIAN STYLE
Made in the USA -Threaded M22x.75RH counts as 1 part
8.95
SPRING KIT 1 FOR SAIGA12 / VEPR12 / FURY SHOTGUNS
Made in the USA can count for up to 2 -3 parts
25.80
JTE SHOTGUN PERFORMANCE GUIDE ROD works with VEPR 12
It will retrofit into the existing recoil system by simply removing the the factory pin that holds the rod in place and inserting the new performance rod and replace the factory pin.
You can still use the existing dust cover and springs, or you can update to the improved CSS-Full-Power-Spring and CSS-Spring-1 for superior performance. Counts as 1 part ?
29.95
JTE Performance Power Hammer Spring /Main Spring for All Saiga and AK variants
Give your weapon complete reliability by replacing your factory mainspring with this American manufactured, silicon spring steel, Performance Power main spring.
Dramatically smooths and improves trigger pull while maintaining the same factory level striking force.
This spring will not fall off the trigger legs, break or twist like the factory stock spring. Counts as 1 part ?
9.95
AK47, SKS, SAIGA AND VEPR RIFLES 5-PIECE COLORED FRONT SIGHT SET - Counts as 1 part ?
$4.95
JTE Performance Power Hammer Spring /Main Spring for All Saiga and AK variants
Counts as 1 part ?
9.95
Parts can be found here
http://www.carolinashooterssupply.com/category_s/1853.htm