Finding the right screw for your AR-15 pistol grip might seem like a minor detail, but using the incorrect size can lead to a loose grip, impacting your shooting accuracy and potentially even causing safety issues. This guide provides a comprehensive overview of AR-15 pistol grip screw sizes, helping you identify the correct replacement or spare screws for your firearm.
Standard AR-15 Pistol Grip Screw Size
The most common screw size for AR-15 pistol grips is 1/4"-28 x 1/2". This refers to:
- 1/4": The diameter of the screw.
- 28: The number of threads per inch (TPI). This is crucial for a proper fit and secure grip.
- 1/2": The overall length of the screw.
Important Note: While this is the most common size, it's not universal. Always double-check the screw size in your specific pistol grip before purchasing replacements. Some manufacturers may use slightly different screw lengths or even different thread pitches.
Why Screw Size Matters
Using the wrong screw can have several negative consequences:
- Loose Grip: An improperly sized screw won't secure the grip tightly, leading to instability and discomfort during shooting. This can affect your accuracy and overall shooting experience.
- Safety Hazards: A loose grip could potentially come detached during firing, creating a dangerous situation.
- Damage to the Receiver: Forcing a wrong-sized screw into the grip or receiver could strip the threads, requiring more extensive repairs.
Identifying Your AR-15 Pistol Grip Screw Size
If you're unsure of your screw size, here's how to identify it:
- Remove the existing screw: Carefully remove the screw from your pistol grip.
- Measure the diameter: Use a caliper or ruler to measure the diameter of the screw shaft.
- Count the threads: Carefully count the number of threads per inch along the screw shaft.
- Measure the length: Measure the overall length of the screw from the head to the tip.
- Compare your measurements: Compare your measurements to the standard size (1/4"-28 x 1/2") and other potential sizes to confirm the correct size.
Where to Find Replacement Screws
Replacement screws can typically be found at:
- Gun stores: Local gun stores often carry a variety of AR-15 parts, including screws.
- Online retailers: Numerous online retailers specializing in firearms and accessories sell AR-15 pistol grip screws.
- Hardware stores: While less likely to have the exact specifications, some hardware stores might carry screws with similar dimensions. However, verifying the thread pitch is crucial for a secure fit.
Beyond the Standard: Variations and Considerations
While the 1/4"-28 x 1/2" screw is prevalent, remember that variations exist. Some aftermarket pistol grips might utilize different screw sizes to accommodate unique designs or materials. Always refer to the manufacturer's specifications for your specific pistol grip model. Using the wrong screw could damage your firearm or even present a safety risk.
Conclusion
Choosing the correct AR-15 pistol grip screw is essential for both functionality and safety. By understanding the standard size and the critical steps to identify your specific screw size, you can ensure your firearm remains reliable and secure. Remember, when in doubt, always consult the manufacturer's instructions or seek advice from a qualified gunsmith.
