The question of whether an M&P 2.0 slide will function correctly on an M&P 1.0 frame is a common one among Smith & Wesson firearm owners. The short answer is: generally no, it's not recommended. While there might be some superficial similarities, crucial differences exist that can lead to malfunctions, reduced accuracy, and even potential safety hazards. This guide will delve into the specifics, explaining why this modification is ill-advised.
Key Differences Between M&P 1.0 and M&P 2.0 Frames and Slides
The Smith & Wesson M&P (Military & Police) pistol underwent a significant redesign between the 1.0 and 2.0 generations. While the overall aesthetic might appear similar, several key internal components differ, making the slides incompatible.
1. Slide Rails and Locking System:
- The most significant difference lies in the slide rails and locking system. The M&P 2.0 features redesigned slide rails that are not interchangeable with the 1.0 system. Forcing a 2.0 slide onto a 1.0 frame will likely result in binding, preventing smooth cycling and potentially causing damage to the frame or slide. The locking lugs themselves might also be slightly different in dimensions, further compounding the issue.
2. Ejection Port and Extractor:
- Subtle differences in the ejection port and extractor can also create problems. While not immediately obvious, these variations can lead to inconsistent ejection and increased stoppages, especially with different ammunition types.
3. Internal Components:
- Beyond the readily visible external components, internal parts such as the firing pin, firing pin safety, and other internal mechanisms might not be fully compatible. This increases the risk of misfires or malfunctions, posing a safety risk.
Why Attempting this Modification is Dangerous
Attempting to force an M&P 2.0 slide onto an M&P 1.0 frame is strongly discouraged due to the potential for:
- Malfunctions: Inconsistent cycling, failure to feed or eject, and stoppages are likely.
- Damage: The frame or slide can be damaged due to the misalignment and excessive force required.
- Safety Hazards: The risk of misfires or accidental discharges significantly increases due to potential interference with the firearm's internal mechanisms.
Upgrading Your M&P 1.0
If you're considering upgrading your M&P 1.0, the most reliable and safest method is to purchase a complete M&P 2.0 pistol. While some aftermarket parts might exist, they are often costly and not guaranteed to achieve seamless integration, potentially still leaving you with reliability problems. Always prioritize safety and reliability when dealing with firearms.
Conclusion: Stick to Manufacturer Specifications
In summary, fitting an M&P 2.0 slide on an M&P 1.0 frame is not a viable or safe modification. The potential risks far outweigh any perceived benefits. Respecting the manufacturer’s specifications and using only compatible components is crucial for ensuring your firearm’s safe and reliable operation. Always consult a qualified gunsmith for any firearm modifications or repairs.
