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Ar-15 Silent Captured Springs Gen 2 J P Enterprises. The Gen 2 Drop-in captured-spring recoil system helps your AR function more smoothly and quieter without any permanent modifications. The carefully balanced, ...
Ar-15 Silent Captured Springs Gen 2 J P Enterprises. by admin www.brownells.com

The Gen 2 Drop-in captured-spring recoil system helps your AR function more smoothly and quieter without any permanent modifications. The carefully balanced, custom-ground buffer spring, combined with the JP LMOS buffer, greatly reduces friction and vibration - say goodbye to the annoying “spoon over a cheese grater” noise of conventional springs and buffers. Fits buffer tubes for both M4-style collapsible stocks and also, using the included spacer, the longer tubes for fixed rifle stocks.

The Auxiliary Spring Rate Kits for the JP Silent Captured Spring allow custom tuning of the device to a given rifle. While the default spring offers the best performance for the widest range of configurations, a simple disassembly and reassembly of the JPSCS with a slightly different spring rate can yield truly optimized performance, particularly for rifles without an adjustable gas block.

 

Benefits of the Gen 2 Captured Silent Springs include:

  • New aluminum guide rod cuts overall weight

  • Comes with three stainless steel weights

  • Heavier masses translate to more buffering mass and chance of bolt bounce

  • Full correspondence between SCS masses and H1, H2 and H3 buffers

  • Interchangeable buffers allow conversion between AR-15 and AR-10 models (and vice versa)

 

Includes spacer to allow for installation in both carbine-length and rifle-length buffer tubes, as well as three stainless steel weights. The standard weight buffer weighs approximately 3.0 ounces.


Big Book Catalog, Issue:71, Page:034


M16 5.56 Bolt Carrier Group Nickel Boron Mp Brownells. The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in ...
M16 5.56 Bolt Carrier Group Nickel Boron Mp Brownells. by admin www.brownells.com

Flawless Operation at an Affordable Price

The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in any AR-15 or M16.

The Brownells M16 5.56 Complete Bolt Carrier Group features a bolt fabricated from 9310 steel that includes a heat-treated and shot-peened finish. The bolt carrier itself is built using 8620 steel, which features a hardened finish. The whole BCG is completed with a nickel-boron coating.

  • Steel quality assured with magnetic particle inspection
  • Features extractor with rubber insert and spring
  • Gas-key screws are torqued and staked
  • Designed for use with all 5.56-NATO-based cartridge cases.

The Brownells M16 5.56 Complete Bolt Carrier Group features a full assembly that includes the bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.


Big Book Catalog, Issue:71, Page:011