Angstadt Arms Bolt Catch Spring Kit

(13 customer reviews)

Replacement bolt catch installation kit for Angstadt Arms 0940 and 1045 receiver.


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SKU: AA09BCINST Categories: , ,

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Replacement bolt catch installation kit for Angstadt Arms lower receivers. Includes lightend bolt catch spring, bolt catch dowel pin, bolt catch set screw and 1/16 hex end wrench. This kit is included with the purchase of a stripped lower receiver or matched receiver set. Does not include a bolt catch. Compatible with both the 0940 and 1045 lower receiver (UDP-9 and UDP-45 firearms).

Bolt catch installation instructions

Weight .005 lbs
Dimensions 7.2 × 5 × .1 in

Angstadt Arms


Angstadt Arms

13 reviews for Angstadt Arms Bolt Catch Spring Kit

  1. Steve M. (verified owner)

    I purchased a second kit as a backup. Great product as usual.

  2. Hector M. (verified owner)

    Perfect fit good quality

  3. Trent R. (verified owner)

    I bought this to replace the spring from a mil spec lower kit I bought and it always the LRPHO to function properly. Fixed all the problems I had. IF UOU BOLT CATCH ISN’T WORKING PROPERLY THE SPRING MAY BE TOO TIGHT…THIS SPRING WILL FIX IT!!! Great product!

  4. Timothy K. (verified owner)

    Perfect fit and function…Bought 4 to have spares

  5. Scott S. (verified owner)

    Fast shipping and the bolt catch spring (with the actuator ) worked flawlessly on my Sharps 9mm lower.

  6. Matthew D. (verified owner)

    Worked perfectly for my Sharps Bros Jack 9 gen 2 lower LRBHO. Now my bolt catch works perfectly. Make sure you buy this with the Angstadt Arms LRBHO

  7. Ricky P. (verified owner)

    Works as it should!!!!! Like all the Sharps Bros parts!!!!!

  8. Tom (verified owner)

    The parts work great

  9. Jose (verified owner)

    Great quality as always and this kit is nice for the price since i really only needed the screw. I would recommend one just to have a few spare parts

  10. TKT (verified owner)

    Easy install! Excellent item

  11. Brian Averyt (verified owner)

    Built a .40 s&w large platform pistol and could not get the LRBHO to function even with factory Glock mags. The mag spring was too weak to overcome the bolt catch spring. This part fixed the problem. LRBHO now functions with both factory and aftermarket fun sticks!

  12. Tommy Tario (verified owner)

    Just as promised. Good quality. Fast shipping. I really love the quality of their products.

  13. Randy Pamiroyan

    Fast shipping! Excellent quality.

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Bolt Catch Spring Kit
Angstadt Arms Bolt Catch Spring Kit

In stock

Purchase & earn 10 points!