Date: 23/5/2019 15:55
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Brownells M4 Carbine Stock Wrench

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Brownells M4 Carbine.

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Lifetime limited warranty

PY-A-5407

$12.99

List Price $14.99 Save $2.00 (13%)

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Estimated in-stock date 06-18-19
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This product is out of stock.
Estimated in-stock date 06-18-2019.
Place your order now for delivery priority!

  • Brownells M4 carbine stock wrench made by Rock River Arms
  • Quickly, easily remove old extension tube to install new-style A4 stock
  • Spanner has 3 lugs to fit the castle nut
  • Non-slip fit to apply the correct torque
  • Rubber-coated handle
  • Cutout fits receiver extension tube to remove A1 or A2 stocks
  • Steel with parkerized finish
  • 7-5/8" long


The right tool to remove the old extension tube so you don't damage your stock. An inexpensive part. But without it, you could cause some expensive damage!

Item Code: BR-739-000-10WB [PY-A-5407]

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  • yoshi from Japan asked:

    Air force condor Do you comply with removal of air tank?

    This product is out of stock. Estimated in-stock date 06-18-2019

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