Bushmaster FLTTOP REC 450 UPPER 20"

Questions & Answers

• Q: What's the thread pitch on the barrel?

  • Answered
  • Asked 06/18/2021 18:54 by Peter D

  A:

  Peter, barrel thread is 11/16"-24 - Cheers and stay safe!
• Q: Does this come with the bolt carrier group like the one advertised on bushmaster’s website?

  • Answered
  • Asked 03/22/2019 03:52 by Robert S

  A:

  Robert, Yes this is a complete upper including BCG. See following description. Sale!
  Bushmaster Complete AR-15 Upper Receiver, .450 Bushmaster, 20″ BBL, Includes BCG, 4-RD, Bushmaster 91702
  $569.00 $529.00
  1 in stock
  Add to cart
  SKU: 91702 Categories: AR-15 Parts and Accessories, Complete Upper Receivers, Accessories
  DescriptionImportant NoteTerms and Conditions
  Product Description
  Bushmaster Complete AR-15 Upper Receiver, .450 Bushmaster, 20″ BBL, Includes BCG, 4-RD, Bushmaster 91702
  This is a comlete upper in .450 Bushmaster Caliber with 20″ barrel and Suppressor. Includes 4 Rd. Magazine. These uppers will mount right on your mil. spec. Lower receiver. With a velocity of 2200 FPS, the Hornady 250 Gr. SST/FT bullet in the .450 Bushmaster “Thumper” is designed for all large North American game. Though not a long distance cartridge, accuracy has proved to be exceptional out to 200 yards with felt recoil similar to a 20 ga. shotgun. Tubular aluminum forends allow the barrel to free float from the nut forward, chrome lining in both bore and chamber makes for long barrel life and easy cleaning.
  This upper receiver assembly comes complete with a charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. The upper also features a versatile flat top for mounting optical devices or accessories.

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• Q: What is the diameter size on the barrel if I want to change this one out with an adjustable one for recoil?

  • Answered
  • Asked 02/16/2019 16:20 by Preston T

  A:

  Preston, this upper has a .750" gas block journal.

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• Q: Is Model # 97102 as shown here the correct Model # or is it Model # 91702 as shown on the bushmaster site?

  • Answered
  • Asked 12/20/2018 05:50 by Russell E H

  A:

  the UPC crosses to 91702 (buds Typo) specs Brand: Bushmaster
  UPC: 604206917027
  MFR #: 91702 When you need a heavy hitting round in a familiar AR platform, then get your hands on the Bushmaster .450 Bushmaster 20" Upper Receiver. This upper will mount right on your mil spec lower. With the .450 Bushmaster round, you'll be able to take any large North American game. Tubular aluminum forends allow the barrel to free float from the nut forward giving your exceptional accuracy. The bore and the chamber are both chrome lines, making for a long barrel life and easier cleaning.
  Specifications and Features:
  Aluminum free floated handguard
  .450 Bushmaster caliber
  20" chrome lined barrel
  A3 flattop upper
  Izzy suppressor
  Includes:
  Bolt carrier group
  4 round magazine
  
• Q: Is the upper available in left handed?

  • Answered
  • Asked 11/28/2018 01:16 by KEITH M

  A:

  Buds does not have this upper in left hand currently Keith. https://tromix.com/product/450-bushmaster-complete-assembled-upper-left-handed/

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• Q: I own a Bushmaster A1. Will this upper fit on an A1 lower?

  • Answered
  • Asked 11/16/2018 00:33 by Marvin J

  A:

  Hi Marvin, Yes it will fit

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• Q: What is the twist rate on the barrel ?

  • Answered
  • Asked 10/17/2018 02:12 by Jeffrey H

  A:

  1 in 24" twist Jeffrey. The Heavy barrel is hard-chrome lined in bore and chamber for exceptional durability and has 1 in 24" twist rifling, optimized for the .450 bullet.

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• Q: Can I remove the Izzy suppressor on this and replace it with a different muzzle break?

  • Answered
  • Asked 09/18/2018 16:13 by Carter D

  A:

  Carter, yes, as this upper has a threaded barrel (11/16" x 24 T.P.I. (threads per inch)) with a removable Izzy Suppressor.

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• Q: Do I need to go thur a FFL Dealer to buy this upper ?

  • Answered
  • Asked 06/25/2018 22:44 by Jerry G

  A:

  Hi Jerr, No you do not
• Q: does it have an enlarged ejection port?

  • Answered
  • Asked 06/07/2018 01:05 by joe r

  A:

  Yes it does to accommodate the larger diameter 450 bushmaster Cartridge Joe.
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