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The KynSHOT Spacer Weight was designed in cooperation with Blitzkrieg Components and can be used with KynSHOT’s PCC hydraulic buffers, and our AR hydraulic buffers to add mass in front of the buffer. The Spacer Weight also adds .75″ (1.905 cm) in length to the buffer system, and adds 2.5 ounces (71 gr) of weight, which is designed for a close fit buffer tube while preventing tilting of the buffer during cycling.
If you want to use this weight and have your bolt cycle the full distance and stop behind the bolt catch, you will need to use an AR-10/A5 length buffer tube since they are .75″ (1.905 cm) longer on the inside. If you use this weight with KynSHOT’s PCC buffers to create a short stroke system that stops forward of the bolt catch you will need to use a typical AR-15 buffer tube . Additional mass is very important in any PCC short stroke set up since the bolt doesn’t have as much time to slow down.
The most optimal set up for most 8-16″ barreled guns is to run this PCC Buffer weight in front of an RB5015HD buffer with a .308 carbine buffer spring in an AR10/A5 buffer tube for full bolt stroke. If your bolt has a weight pinned into the rear of it, we recommend leaving that in place to retain full mass of your bolt.
VKAction and KynSHOT encourage everyone to follow the proper gun safety guidelines when handling any firearm at all times.
