TAIYO Buffer: Buffer Type: A2M16 series features: small form factor, light weight adjustable screw-type analog buffer to absorb energy adjustable shock absorber outer diameter of only M16, compact, installation is as simple as using the outer diameter of the bolt has been implemented thread cutting compact, but very soft shock absorbing buffers of excellent durability AS-0712 features: small size, light weight plastic buffer using "divide" as a seal, sealing parts friction smaller high efficiency buffers the outer diameter of the thread has been cut out, positioned for easy adjustment during installation by using silicone, can vary for ambient temperature changes, consistent performance affordable AS-1010 features: small form factor, light weight buffer using "divide" as a seal , sealing parts friction smaller high efficiency buffers by using silicone, can vary for ambient temperature changes, consistent performance compact, but very soft shock absorbing. Buffer main models: F-A2M27S025SD-C W-A2M16N012 ASF-03-10 L-A2M27N025SD F2M8A005 W-A2M16N012-C ASY-03-10 L-A2M27S025SD-C F2M8A005-C W-A2M20N016SD A2M20N016SD AS-0712 F2M8B005 W- A2M20S016SD-C A2M20S016SD-C AS-0712 F2M10A005-C W-A2M25N040SD A2M27S025SD-C ASF-03-10 F2M10B005 W-A2M27N025SD A2M27S025CB ASY-03-10 F2M10B005-C W-A2M27S025SD-C A2M36N025SD