Kel-Tec CP33 Quad Stacked .22LR

Published on December 2, 2019
Duration: 24:06

This guide details how to address a common mechanical failure in the Kel-Tec CP33, specifically a roll pin walking out and loosening screws in the trigger group. Following these steps, which include reseating the pin and applying Loctite to screws, can restore proper function. Always prioritize safety by ensuring the firearm is unloaded before beginning any work.

Quick Summary

The Kel-Tec CP33 is a .22LR handgun distinguished by its 33-round quad-stack magazine. While offering high capacity, it's sensitive to ammunition, requiring at least 40-grain rounds for reliability. Common issues include roll pins walking out and loose trigger group screws, which can be fixed with proper maintenance and Loctite.

Chapters

  1. 00:10Introduction to the Kel-Tec CP33
  2. 01:15Range Performance and Ammo Selection
  3. 02:33Magazine Design and Loading
  4. 04:34Unboxing and MSRP
  5. 06:21Technical Features and Ergonomics
  6. 12:30Optics and Suppressor Testing
  7. 19:07Mechanical Failure and Field Repair

Frequently Asked Questions

What are the key features of the Kel-Tec CP33?

The Kel-Tec CP33 is a .22LR handgun featuring a unique quad-stack 33-round magazine, an AR-15 style charging handle, ambidextrous safety selectors, a full-length Picatinny rail, and an M-LOK slot. It utilizes a blowback action and has a distinctive rear overhang.

What ammunition is recommended for the Kel-Tec CP33?

For optimal reliability, the Kel-Tec CP33 owner's manual recommends using .22LR ammunition with a bullet weight of at least 40 grains. Lighter or subsonic rounds may cause cycling failures, especially when suppressed.

What common mechanical issues can affect the Kel-Tec CP33?

The CP33 can experience issues like a roll pin walking out of its channel, potentially gouging internal components, and screws in the trigger group becoming loose. These can be addressed with proper maintenance and Loctite.

How does the CP33's magazine design work?

The CP33 utilizes a transparent quad-stack polymer magazine holding 33 rounds. This design helps prevent 'rimlock' by allowing visual confirmation of round stacking. Loading requires a specific 'down and back' motion, and the magazine includes an integrated feed ramp.

More Gunsmithing & DIY Videos You Might Like

More from Military Arms Channel

View all →