1045 Receiver Set for GLOCK®

(6 customer reviews)

The 1045 is a dedicated 45 ACP GLOCK® magazine fed AR-15 billet lower and upper receiver set. Includes last round bolt hold open.


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  • Last round bolt hold open on an empty magazine
  • Flared magwell for faster reloads
  • Lower receiver accepts 45 ACP GLOCK® magazines
  • Integrated, oversized trigger guard
  • 7075-T6 billet aluminum lower receiver with a matte black hard-coat anodized finish
  • 7075-T6 billet aluminum slick side upper receiver with appropriately sized ejection port and no forward assist or dust cover
  • Threaded bolt catch screw
  • For use with a 45 ACP bolt carrier assembly and a standard AR-15 hammer
  • Lower weight: 10.8 oz
  • Upper weight: 6.5 oz
  • Patent pending
  • Accepts all aftermarket Glock® 45 ACP double stack magazines
Weight2 lbs
Dimensions11 × 7 × 2 in

Angstadt Arms


Angstadt Arms

6 reviews for 1045 Receiver Set for GLOCK®

  1. Gary P. (verified owner)

    Just got the Upper and lower this morning. Went together like a AR.
    will test fire this afternoon.

  2. Lance H.

    finished the last 45 build last week, love it, the quality of the lower and upper receiver is hand’s down the best. Keep up the good work Angstadt!! SSGT USMC retired

  3. Lance H.

    2nd one, great quality. Love this platform.

  4. Steven R. (verified owner)

    Quality looks great, can’t wait to get this build underway and start sending rounds down range!

  5. Shawn B.

    Very good quality will buy again

  6. Jeff V. (verified owner)

    Great product! Form and fit excellent but a work in progress for at the moment, lookin forward to getting it completed!

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Angstadt AR-45 Receiver Set 1045
1045 Receiver Set for GLOCK®

Out of stock