Review of 6 PCC Rifles - Part 1 Shop Talk

Published on January 16, 2019
Duration: 9:10

This review, presented by Jerry Miculek, offers an expert-level comparison of six Pistol Caliber Carbines (PCCs) popular in USPSA competition. It delves into the technical differences between straight blowback, gas-operated, and delayed blowback actions, highlighting specific features like bolt designs, magazine compatibility, and recoil mitigation strategies. The insights provided are invaluable for competitive shooters and enthusiasts looking to understand the nuances of PCC platforms.

Quick Summary

Jerry Miculek reviews six popular Pistol Caliber Carbines (PCCs), detailing their operating systems: straight blowback (Colt), gas-operated (Sig MPX), and delayed blowback (CMMG). He highlights features like bolt designs, magazine compatibility (Ruger, Glock), and recoil reduction for USPSA competition.

Chapters

  1. 00:00Introduction to PCC Rifles & USPSA
  2. 00:23Colt 9mm Carbine Review
  3. 00:59Ruger PC Carbine Features
  4. 01:50JP Enterprises PCC Overview
  5. 02:18MBX PCC & Magazine Deep Dive
  6. 03:55Stern Defense Conversion Kit
  7. 04:34Sig Sauer MPX Gas-Operated System
  8. 05:27CMMG PCC Delayed Blowback
  9. 06:49Bolt Assembly Technical Comparison

Frequently Asked Questions

What are the main operating systems found in Pistol Caliber Carbines (PCCs)?

PCCs primarily utilize three operating systems: straight blowback, gas-operated, and delayed blowback. Straight blowback is simple but can have more felt recoil, while gas-operated and delayed blowback systems aim to reduce recoil through different mechanical means.

How does the Sig Sauer MPX differ from other PCCs in this review?

The Sig Sauer MPX stands out as the only gas-operated firearm in the group. It features a rotary bolt with three locking lugs, which contributes to significantly less felt recoil compared to the blowback designs of other PCCs reviewed.

What are the advantages of a delayed blowback system in a PCC?

A delayed blowback system, like the one in the CMMG PCC, uses mechanical features such as tapered lugs on a rotary bolt to slow the bolt's opening. This reduces the peak pressure experienced by the shooter, resulting in less felt recoil than a standard straight blowback action.

What magazine compatibility options are available for PCCs?

PCCs offer various magazine solutions. Some use proprietary magazines like the Colt 9mm Carbine's stick magazines. Others, like the Ruger PC Carbine, can accept Ruger or Glock magazines via conversion blocks. MBX also offers high-capacity Glock magazine extensions.

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