SI Enhanced AR-10 Lower Parts Kit (Builders Kit)

$59.95
In stock
SKU
SI-AR10-E-LRPLT

The Strike Industries Enhanced AR-10 Lower Parts Kit (Builders Kit) is a convenient upgrade package for the AR10/LR308 and those looking for a complete Strike solution for their new long range builds.

This is called the Builders Kit as it includes all the essential parts needed to complete your build. It does not include a pistol grip or mil-spec trigger parts because we understand that builders may want to use a pistol grip or drop-in trigger of their own choice.

Check out our SI AR Grips available which are also great choices. We do include spare springs for mil-spec triggers in case you want to refresh your old trigger which is a better option than letting it collect dust in a random drawer.

With our Strike Enhanced Parts, you'll have a built-out lower receiver with better looking and higher functioning parts than an average LPK.

COMPATIBILITY:
-AR-10, DPMS/LR308, SR-25 lower receivers
-Aero Precision M5 lower receivers have slight generation differences. Due to generation versions and tolerances, newer gen M5 lowers fit rear takedown pin slightly better than older gen M5.

NOT COMPATIBLE:
-ArmaLite AR-10
-Some billet lower receivers due to no Mil-Spec standard
-AR-15: Bolt Catch, Bolt Catch Roll Pin, Pivot Pin and Takedown Pin are not compatible with AR-15 lower receivers

main product photo
Add to Wish List

PACKAGE CONTENTS

SI ENHANCED PARTS: (11pcs)
  • Strike AR-10 Enhanced Bolt Catch - features improved grip surfaces and angles
  • Strike Magazine Catch
  • Strike Magazine Catch button - features improved grip surface
  • SI Extended Pivot Pin - longer of the two large pins
  • SI Extended Takedown Pin - smaller of the two large pins
  • HEX Selector Switch - x2 included
  • HEX Selector Switch end cap
  • HEX Selector Switch 60/90-Degree shaft with screws - x1 shaft and x2 screws

    • SPRINGS: (9pcs)

  • Bolt Catch Spring - easily confused with the disconnector spring; disconnector spring is tapered though
  • Magazine Catch Spring - this is the largest coil spring in the kit
  • Pivot Pin Detent Spring - same as the takedown detent spring, so there are two in a kit
  • Takedown Pin Detent Spring - same as the pivot detent spring, so there are two in a kit
  • Selector Spring - similar to the takedown and pivot detent springs, but larger diameter; there will only be one of these
  • Buffer Retainer Spring - second largest coil type spring in the kit
  • Hammer Spring - largest of all the springs
  • Trigger Spring - the smaller of the two largest springs
  • Disconnector Spring - slightly larger than bolt-catch spring, identifiable because one end is a little bit wide than the other

    • PINS/DETENTS/OTHERS: (8pcs)

  • Bolt Catch Plunger - mushroom shaped pin
  • Bolt Catch Roll Pin - smaller of the two roll pins
  • Pivot Pin Detent - same as takedown detent; both sides usually rounded or semi-conical
  • Takedown Pin Detent - same as pivot detent; both sides usually rounded
  • Selector Detent - one end is flat, the other pointed/semi-conical
  • Buffer Retainer - large hollow barrel with small pin protruding from the top
  • Hammer Pin - solid pin with machined grooves; can be inserted from either side
  • Trigger Pin - same as hammer pin; can be inserted from either side

    PRODUCT FEATURES:
    -Includes SI's signature Enhanced Lower Parts:

  • Strike AR-10 Enhanced Bolt Catch (SI-AR-EBC)
  • Strike Magazine Catch - Black (SI-AR-SMC)
  • SI Extended Pivot / Takedown Pins (SI-AR10-EPTP) (coming soon)
  • HEX Selector Switch 60/90 degree 3 in 1 (SI-AR-HS-60/90-3in1)
    • -Freedom to pick your own AR trigger group (AR hammer and trigger springs + pins are included)
    -Included SI enhanced components at a cost-effective LPK price
    -Perfect pairing with one of the various SI AR Grips available

    NOTE: Due to no Mil-Spec standards for the AR-10 platform, some parts will still function as intended but may have slight movement

    DISCLAIMER: Due to the compact design of the PDW Stock and PDW Stabilizer, the SI Extended, Shift & Ultra Light Pivot / Takedown Pins, as well as other possible extended pin sets on the market, will bind or not clear the slide rods.

    -CALIFORNIA PROPOSITION 65 WARNING:-
    WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov

    Related Products