ROUND LAKE, NEW YORK

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      APF Armory M16 Bolt Carrier Group SP4 5.56/223/300 BLK Silver

      $248.00

      SECURE ONLINE ORDERING

      2 in stock

      Additional Info

      UPC

      787790165750

      Manufacturer

      Manufacturer Part Number

      RPUP-171-S

      APF SP4-coated BCGs Machined to Military Specifications & Made in the USA

      Alex Pro Firearms (APF) is proud to introduce BCGs featuring SP4 a hybrid DLC (Diamond Like Carbon) coating that is the result of over a year in development. SP4 combines high hardness (2500-3500 HV) with ductility to remain tough without exhibiting brittleness vs common PVD/DLC type thin film coatings. SP4 reduces friction and improves wear resistance for metal components which provides a longer life span and requires minimal maintenance with little to no lubrication. It has been tested to -44F in the mountains of Alaska and has been tested in both Iraq and Afghanistan with no lubrication which is a huge advantage in desert environments and extreme cold. SP4 has passed the ASTM 85 (Annex 1) Salt Fog test and provides the best hardness/lowest friction co-efficient while maintaining the ability to “move” with the metal it is protecting. Includes a hand polished bolt carrier with a chrome lined bore and staked gas key bolt with gas rings firing pin cam pin and firing pin retaining pin.
      Longer Product Lifespan (BCG) High Hardness High Wear Resistance Extremely High Lubricity

      BOLT: Carptener 158 Shot Peened Heat Treated SP4 Coating
      CARRIER: SAE 8620 Heat Treated SP4 Coating Full Auto
      EXTRACTOR: CNC machined Shot Peened Heat Treated SP4 Coating
      FIRING PIN: Swiss machined Heat Treated Precision ground SP4 Coating
      GAS KEY: CNC machined Heat Treated Chrome Lined Torqued and Staked to Carrier Mil Spec. SP4 Coating
      CAM PIN: Swiss machined Heat Treated SP4 Coating

      Availability of Products
      Please note that the products listed on our website are sourced directly from our suppliers’ feeds. As such, these items are not held in our local inventory but are available for order. We strive to ensure the most accurate and up-to-date availability information. For any queries regarding product availability or shipping times, please contact us.

      Product Compliance Notice
      Please be advised that some of the products available through our website may not comply with specific regulations set by the State of New York. We encourage customers to check the compliance status of each product before making a purchase. If you need more information regarding product compliance, please contact us directly.

      You can also research here: https://gunsafety.ny.gov/

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