The Geissele Superlative Series H2 buffer is a popular choice among AR-15 enthusiasts, known for its ability to enhance reliability and reduce felt recoil. However, understanding the nuances of its weight and how it impacts your rifle's performance is crucial for optimal function. This guide delves into the specifics of Geissele H2 buffer weight, helping you choose the right one for your build and shooting style.
Understanding Buffer Weight and its Impact
The weight of your buffer significantly influences your AR-15's cycling, particularly the speed and reliability of the bolt carrier group (BCG). A heavier buffer slows down the BCG's movement, reducing recoil and potentially improving reliability with certain ammunition types or modifications. Conversely, a lighter buffer speeds up the BCG, potentially increasing cycling speed but potentially causing issues with certain ammunition or modifications, potentially leading to malfunctions.
The Geissele H2 buffer is designed to be a versatile option, but its effectiveness depends on several factors including:
- Caliber: .223 Wylde and 5.56 NATO rounds will react differently than heavier calibers like .300 Blackout.
- Buffer Spring: The spring's weight and strength interacts directly with the buffer's weight to regulate the BCG’s movement. A heavier spring will counteract a lighter buffer and vice-versa. Geissele often recommends specific springs paired with their buffers.
- Gas System Length: Carbine-length gas systems generally require different buffer weights compared to mid-length or rifle-length systems. A carbine length system typically needs a lighter buffer to prevent over-gassing, while longer systems might benefit from a heavier buffer.
- Ammunition: The powder charge and overall power of your ammunition affects how the BCG cycles. Heavier loads might necessitate a heavier buffer to maintain reliable cycling.
- Modifications: Adding accessories like suppressors or heavier barrels can also influence your buffer weight requirements. A suppressor, for example, increases back pressure, often requiring a heavier buffer to prevent malfunctions.
Geissele H2 Buffer Weight Options and Their Applications
While Geissele doesn't explicitly list the weight of their H2 buffer in grams, they offer it in several configurations that effectively alter the overall weight. This is achieved primarily through the internal weight of the buffer itself. This subtle variation caters to the differences in ammunition and system configurations listed above. The key is to understand how the weight influences performance, rather than simply focusing on a specific number in grams.
Choosing the correct weight ultimately comes down to experimentation and observation. Start with Geissele's recommendations for your specific AR-15 configuration and adjust accordingly based on function. Note that excessive experimentation can lead to malfunctions or damage.
Addressing Common Issues:
- Short stroking: If your BCG isn't fully cycling, you might need a heavier buffer or a stronger spring.
- Over-gassing: Excessive gas pressure can lead to increased recoil and potential malfunctions. A lighter buffer or weaker spring may be necessary.
- Failure to feed/extract: These issues can be caused by a variety of factors, but incorrect buffer weight can be a contributing factor.
Conclusion: Finding the Optimal Setup
Selecting the ideal Geissele H2 buffer weight involves understanding the intricate relationship between buffer weight, spring weight, gas system length, ammunition type, and any modifications present on your rifle. While precise weight specifications might be unavailable, the practical effect of different H2 buffer configurations and their impact on your rifle's function should guide your decision. Remember to always consult reputable sources and prioritize safety when experimenting with your AR-15's components.
