J P Enterprises167529518
308 Ar Silent Captured Spring Gen 2 H2 W/ Alt Pack$208.00
Availability: In Stock
The JP Enterprises 308 AR Silent Captured Spring Gen 2 is a drop-in recoil system built to smooth out the action and quiet down your .308 AR platform rifle without permanent modifications. If you've winced at the harsh rattle of a conventional buffer spring—that grinding, metallic noise that echoes through your shooting session—this captured-spring setup addresses it head-on. The Gen 2 combines a custom-ground buffer spring with JP's LMOS buffer to cut friction and vibration, delivering noticeably smoother cycling and a quieter, more refined shooting experience whether you're running a precision rifle at the range or hunting in country where noise discipline matters.
The system ships ready to use in either carbine-length or rifle-length buffer tubes. An included spacer lets you adapt between M4-style collapsible stocks and longer fixed rifle setups, so you're not locked into one configuration. The standard buffer tips the scales at roughly 3.6 ounces and incorporates one tungsten weight and two steel weights—that heft translates to better recoil absorption and less bolt bounce. An aluminum guide rod keeps overall weight reasonable, and the Gen 2's interchangeable buffer design means you can swap toward AR-15 or AR-10 tuning if your platform evolves.
Performance doesn't have to be one-size-fits-all. The .308 AR Silent Captured Spring Gen 2 accepts optional Auxiliary Spring Rate Kits, letting you dial in spring rates that work best for your specific rifle. While the factory spring performs well across a broad range of configurations, swapping in a custom rate—especially valuable if you're running an AR without an adjustable gas block—can unlock truly optimized function tailored to your setup. Reassembly is straightforward; no gunsmithing required.
| Caliber | .308 / AR-10 |
| Buffer Weight | Approximately 3.6 ounces |
| Buffer Composition | One tungsten weight, two steel weights |
| Guide Rod Material | Aluminum |
| Compatibility | M4-style collapsible stocks and fixed rifle-length buffer tubes (with spacer) |
| Installation | Drop-in, no gunsmithing |
| Includes | Buffer tube spacer for length adaptation |
Yes. The Gen 2 comes with a spacer that lets you install it in rifle-length buffer tubes, so it works with both collapsible carbine setups and longer fixed-stock configurations.
The system ships with a factory spring that performs well across a wide range of .308 AR builds. For custom tuning—particularly helpful if your rifle lacks an adjustable gas block—JP offers optional Auxiliary Spring Rate Kits. Swapping spring rates is a straightforward disassembly and reassembly.
The standard buffer weighs approximately 3.6 ounces. It uses one tungsten weight and two steel weights to provide effective recoil buffering.
The Gen 2's interchangeable buffer design supports conversion between AR-15 and AR-10 configurations, though this product is chambered in .308 / AR-10 and should be matched to the platform it's designed for.
SKU: 167527947 • Weight: 0.69oz
Availability: In Stock
The JP Enterprises 308 AR Silent Captured Spring Gen 2 is a drop-in recoil system built to smooth out the action and quiet down your .308 AR platform rifle without permanent modifications. If you've winced at the harsh rattle of a conventional buffer spring—that grinding, metallic noise that echoes through your shooting session—this captured-spring setup addresses it head-on. The Gen 2 combines a custom-ground buffer spring with JP's LMOS buffer to cut friction and vibration, delivering noticeably smoother cycling and a quieter, more refined shooting experience whether you're running a precision rifle at the range or hunting in country where noise discipline matters.
The system ships ready to use in either carbine-length or rifle-length buffer tubes. An included spacer lets you adapt between M4-style collapsible stocks and longer fixed rifle setups, so you're not locked into one configuration. The standard buffer tips the scales at roughly 3.6 ounces and incorporates one tungsten weight and two steel weights—that heft translates to better recoil absorption and less bolt bounce. An aluminum guide rod keeps overall weight reasonable, and the Gen 2's interchangeable buffer design means you can swap toward AR-15 or AR-10 tuning if your platform evolves.
Performance doesn't have to be one-size-fits-all. The .308 AR Silent Captured Spring Gen 2 accepts optional Auxiliary Spring Rate Kits, letting you dial in spring rates that work best for your specific rifle. While the factory spring performs well across a broad range of configurations, swapping in a custom rate—especially valuable if you're running an AR without an adjustable gas block—can unlock truly optimized function tailored to your setup. Reassembly is straightforward; no gunsmithing required.
| Caliber | .308 / AR-10 |
| Buffer Weight | Approximately 3.6 ounces |
| Buffer Composition | One tungsten weight, two steel weights |
| Guide Rod Material | Aluminum |
| Compatibility | M4-style collapsible stocks and fixed rifle-length buffer tubes (with spacer) |
| Installation | Drop-in, no gunsmithing |
| Includes | Buffer tube spacer for length adaptation |
Yes. The Gen 2 comes with a spacer that lets you install it in rifle-length buffer tubes, so it works with both collapsible carbine setups and longer fixed-stock configurations.
The system ships with a factory spring that performs well across a wide range of .308 AR builds. For custom tuning—particularly helpful if your rifle lacks an adjustable gas block—JP offers optional Auxiliary Spring Rate Kits. Swapping spring rates is a straightforward disassembly and reassembly.
The standard buffer weighs approximately 3.6 ounces. It uses one tungsten weight and two steel weights to provide effective recoil buffering.
The Gen 2's interchangeable buffer design supports conversion between AR-15 and AR-10 configurations, though this product is chambered in .308 / AR-10 and should be matched to the platform it's designed for.
SKU: 167527947 • Weight: 0.69oz