This video breaks down the process of field stripping the Soviet SVT-40 semi-automatic rifle. We’ll walk through how to take it apart and put it back together, highlighting some of the unique features of this rifle for its time.

Key Takeaways

• The SVT-40 has a more complex field stripping process compared to the Mosin-Nagant.
• Incorrectly removing the recoil spring can damage delicate parts.
• The bolt can be removed from the front by sliding it back and tilting the rifle.
• The gas system features an adjustable gas plug.
• Reassembly requires careful attention to the recoil spring and bolt.

Understanding the SVT-40’s Design

The SVT-40 was quite advanced for its era, featuring a 10-round removable magazine and a gas-operated semi-automatic system. However, its field stripping method wasn’t as straightforward as the standard Mosin-Nagant, which might have been a challenge for many Soviet soldiers during World War II.

Step-by-Step Field Stripping

First, always ensure the firearm is clear and safe. Perform a physical and visual check of the chamber, magazine, and bolt face.

1. Receiver Cover Removal: Start by taking off the receiver cover. You’ll need to pop it forward over the bolt and then lift it off the rifle.
2. Bolt and Recoil Spring Removal: This is where things can get tricky. Do not pull the spring straight out from the rear, as this can bend the springs and rods within the recoil spring assembly. Instead, after removing the receiver cover, slide the bolt to the rear. There’s a groove on the right side of the rifle that allows the bolt to be removed by tilting the entire assembly. This method lets the recoil spring decompress naturally.
3. Separating Bolt Components: Once the bolt is out, separate the tilt lock feature from the bolt itself. It’s similar to how you would do it on an SKS.
4. Cleaning Rod and Sling Swivel: Move to the front of the rifle. Take out the cleaning rod, which is held by a spring-loaded lug inside the bayonet lug. Then, remove the sling swivel. Remember, the sling swivel is reversible, as shown in a previous video.
5. Gas Tube Cover and Upper Handguard: The sling swivel allows access to the gas tube cover and the upper handguard. Both of these parts slide off in opposite directions.
6. Gas System Components: Now you have access to the gas system. There are two caps holding the gas rod: one near the chamber and one at the end of the gas tube. The cap near the chamber is spring-loaded, so be careful when removing it. The gas plug is threaded inside the gas tube.

Reassembling the SVT-40

Putting the rifle back together requires careful attention to detail:

1. Bolt and Firing Pin: Start with the bolt. Make sure the firing pin and the tilt lock section are working correctly. Be aware that the SVT-40 can have slam fire issues, so always wear eye protection when shooting.
2. Gas System Assembly: Reinstall the gas system caps at both ends. The spring-loaded cap goes in at the chamber first. Then, insert the gas rod and screw it into the gas tube, ensuring it’s properly secured.
3. Handguard and Gas Tube Cover: Insert the handguard from the front, making sure it goes under the rear sight. Place the gas tube cover over the gas tube. The sling swivel holds these in place. You can position the sling swivel on either side.
4. Cleaning Rod: Insert the cleaning rod. It’s held in place by a small spring-loaded button under the bayonet lug.
5. Bolt and Recoil Spring Insertion: This is often the most challenging part. Compress the recoil spring fully with the two rods that connect inside the bolt. There’s a circular section at the rear of the bolt where everything fits. Make sure the rods aren’t bent as you insert the bolt. Slowly compress the spring while centering it in the rear of the receiver. It can be quite finicky.
6. Function Check: Once the bolt is in place, check that it can move back and forth. Then, place the recoil spring under the receiver cover. Perform a function check: test the trigger with the safety on, then with the safety off, and check the trigger reset.

Taking apart and reassembling the SVT-40 might seem a bit more involved than simpler rifles, but understanding these steps will help you maintain your rifle properly.