Tbm Conversion Kit For Spr.

The TBM kit is an upgrade kit that allows owners of SPRs with the standard DBM magazine assembly (.308 only) to upgrade to the TBM magazine assembly with 5 and 10-round magazines (DBM is only 4-round capacity). Kit replaces the trigger guard assembly. Does not require modification of or fitting to the rifle. Does not fit SPRs with hinged floorplate. TSRs or PBRs with DBM equipment might require fitting by a gunsmith. Retrofit on SPRs can be accomplished in minutes and requires few tools (torque wrench is required). Comes with new trigger guard/bottom metal, 5 and 10-round TBM magazines, new action screws and instructions.

Big Book Catalog, Issue:71, Page:183
TBM Conversion Kit for SPR
5.0 5.0 based on 1 reviews
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Dale the gunsmith

Surprise, AZ

  • Pros Aesthetically Pleasing, Easy To Install, Tough
  • Cons Fitting Required
  • Best Uses Competitive Shooting, Hunting, Self Defense, Tactical, Target Practice
  • Describe Yourself Gunsmith
  • Was this a gift? No
  • Bottom Line Yes, I would recommend this to a friend

Highly recommended upgrade for your FN

Some very light fitting was required on the stock inlet for the installation of the bottom metal. The end result is more than worth the effort and expense. The magazines rattle a wee bit, but are much easier to install in the rifle than the original flush-fitting four round magazines. My rifle feeds just fine and the first eight rounds of ammunition are very easily loaded into the magazine. Cartridges nine and ten require a little more effort. I also like the ambidextrous magazine release buttons. All in all, I am very happy with the system and I wish I could afford to equip more of my rifles with this magazine system.

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