Nowlin Stainless Plunger Tube

The Nowlin Stainless Plunger Tube (Nowlin part no. N20S) is a replacement for the small twin-bore tube staked to the 1911 frame that houses the slide stop plunger and thumb safety plunger along with their springs, machined from stainless steel rather than the factory’s blued carbon steel. Stainless resists corrosion and holds its dimension better than carbon steel over the life of the pistol, which matters since both plungers depend on the tube holding true alignment under spring tension. Nowlin manufactures its own precision 1911 parts, so this tube is machined to tighter tolerances than the factory-staked equivalent. Because a plunger tube must be precisely staked and squared to the frame, installation is best handled by an experienced 1911 gunsmith.

Key Specifications

• It is machined from stainless steel for corrosion resistance and dimensional stability.
• It houses both the slide stop plunger and thumb safety plunger springs.

Frequently Asked Questions

Why choose a stainless plunger tube? Stainless resists corrosion and holds its dimension better than carbon steel over the life of the pistol, and both plungers depend on the tube’s alignment staying true under spring tension.

Does this require gunsmith installation? Yes, because the tube must be precisely staked and squared to the frame, installation is best handled by an experienced 1911 gunsmith.

Buy the Nowlin Stainless Plunger Tube

Nowlin manufactures its own precision stainless 1911 parts rather than reselling generic components. Browse our full handgun parts selection and order yours from our Lubbock, Texas gun shop for fast, insured shipping.