308AR BOLT CATCH SCREW BOLT CATCH PIN

by | Apr 11, 2016 | Compatibility, Lower Parts Kits | 0 comments

Picture of a 308 AR Bolt Catch Screw Bolt Catch Pin

308 AR BOLT CATCH SCREW and BOLT CATCH PIN

Early on at 308ar.com we did a page that referenced the the point that the Armalite AR-10 utilized a BOLT CATCH ROLL PIN same as the Armalite M-15 (AR15) rifle while the DPMS LR-308 308 AR and similar rifles utilize a BOLT CATCH SCREW. Well despite that page we still get many questions about this small part. Based on these messages I decided a simple picture might be easier to understand in this day of sort attention spans. While I believe there are a small minority of 308 AR manufacturers using BOLT CATCH ROLL PINS just as there is an AR-15 manufacturer or two have adopted the BOLT CATCH SCREW feature. This post is meant to make folks aware of the differences.

 

308 AR BOLT CATCH SCREW SOURCES

  • DMPS LR-308 BOLT CATCH SCREW
  • AERO PRECISION BOLT CATCH SCREW – Aero Precision refers to this part as the M5 Threaded Roll PinOur threaded roll pin is used in multiple applications, including for the bolt catch on our M5 Lower Receivers and for the forward assist on our Upper Receivers. Made from stainless steel, it has a 6-32 thread pitch and is designed to be installed with a 1/16″ Hex Key Wrench.Note: This product is already included with our M4E1/M5E1 Enhanced Uppers, M4E1 Threaded Uppers, M5 Upper Receiver and our M5 Lower Receiver. It is not necessary to be purchased separately. This individual product is available for customers who have lost or damaged their existing threaded roll pin.

    Works With:

    • M4E1 Enhanced Upper Receivers
    • M4E1 Threaded Upper Receivers
    • M5 Upper Receivers
    • M5E1 Upper Receivers
    • DOES NOT work with our M4E1 Lower Receiver
    • DOES NOT work with a standard AR15 Lower Receiver
  • FALKOR DEFENSE (SI DEFENSE) BOLT CATCH SCREW

At this point I cannot definitively state what 308 AR rifle manufacturers use the threaded BOLT CATCH SCREW or the BOLT CATCH ROLL PIN. Feel free to contact us and let us know whether your lower utilizes a BOLT CATCH SCREW or BOLT CATCH ROLL PIN


308 AR AR-10 Manufacturers who utilize a BOLT CATCH ROLL PIN

  • ARMALITE
  • SUN DEVIL

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