The Nighthawk Custom 1911 Plunger Tube (Nighthawk part no. SP0330) is a match-grade replacement for the small twin-bore tube staked to the frame that houses the slide stop plunger and thumb safety plunger along with their springs. A loose or improperly staked plunger tube is a common source of intermittent slide stop or thumb safety malfunctions on well-used 1911s, since both plungers depend on the tube holding true alignment under spring tension. Nighthawk Custom machines this tube to match-grade tolerances for a tighter fit than the factory part, and staking a new tube square to the frame is a standard step during a full 1911 rebuild or reliability overhaul. 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 houses both the slide stop plunger and thumb safety plunger springs.
• It is machined to match-grade tolerances for a tighter fit than the factory tube.

Frequently Asked Questions

What does the plunger tube do? It houses the slide stop plunger and thumb safety plunger along with their springs, and both depend on the tube holding true alignment 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 Nighthawk Custom 1911 Plunger Tube

Nighthawk Custom machines this plunger tube to match-grade tolerances for reliable slide stop and safety function. Browse our full handgun parts selection and order yours from our Lubbock, Texas gun shop for fast, insured shipping.