MAC-11 Short Stroke Buffer Tuning Pack – 95A TPU add-on buffers for the MAC-11 platform. Five thicknesses included. These install in front of the stock buffer to reduce rearward bolt travel, speed the cycle, and cut down on rear impact.
MAC-11 SHORT STROKE BUFFER TUNING PACK
Add-On Tuning Pack — Installs In Front of the Stock Buffer
PRODUCT DETAILS
Short stroke buffer tuning pack designed for MAC-11 / MAC-11 pattern blowback platforms. These are add-on buffers, not replacements. They install in front of the factory / existing rear buffer.
Adding thickness in front of the stock buffer stops the bolt sooner. That can speed the cycle, reduce slam into the back of the gun, and change reset timing. It can also cause failures to eject if the bolt no longer travels far enough.
Five thicknesses are included so you can start conservative and step up only if the gun still has extra travel. This is a tuning pack / reliability upgrade. The correct thickness depends on your tube, spring, ammo, stock buffer, and fire-control setup.
Warning: Too much added thickness can cause out-of-battery detonations, especially when used with a forced reset trigger. Start with the thinnest size and confirm full ejection and full reset before stepping up.
WHAT YOU GET
- (1x) 5mm thick MAC-11 short stroke buffer — 95A TPU
- (1x) 8mm thick MAC-11 short stroke buffer — 95A TPU
- (1x) 12mm thick MAC-11 short stroke buffer — 95A TPU
- (1x) 15mm thick MAC-11 short stroke buffer — 95A TPU
- (1x) 20mm thick MAC-11 short stroke buffer — 95A TPU
Footprint: 23mm x 25mm on all sizes.
Install in front of the existing buffer. Do not remove the stock buffer unless you are intentionally changing the whole stack.
MATERIAL DETAILS
Made from high-quality 95A TPU.
- Tough enough to take repeated bolt impact
- Softer than hard polymer or metal stops
- Intended as a sacrificial wear item
COMPATIBILITY
Intended for MAC-11 / MAC-11 pattern recoil assemblies that accept a 23mm x 25mm add-on buffer in front of the stock buffer.
Fitment varies by manufacturer (MPA, Cobray, and clones). Buyer is responsible for confirming these dimensions match their gun before use.
INSTALLATION NOTES
- These go in front of the normal / stock buffer
- Use one add-on thickness at a time
- Confirm the bolt still travels far enough to eject and reset
No installation assistance is provided. If you need help, consult a qualified gunsmith.
VIEW MORE
👉 Check out our MAC FRT product lineup
IMPORTANT INFORMATION
- These are experimental / tuning parts
- They add thickness in front of the stock buffer and reduce bolt travel
- Wrong thickness can cause failures to eject or out-of-battery detonations
- FRT use increases that risk
- Not all setups will run the same thickness
Due to the nature of this product:
- All sales are final
- No refunds for fitment, function, or how the buffers are used
- No returns or exchanges on used items
DISCLAIMER
These buffers are considered consumable items. TPU will wear, compress, and deform under repeated bolt impact. Lifespan is not guaranteed and will vary by ammo, spring, and setup.
All parts are sold as-is. By purchasing you accept full responsibility for installation, use, and results.
