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Home :: Tikka :: Tikka T3 Parts :: Tikka T3/T3x DBM for AICS Magazines CTR Inlet by Lumley

Tikka T3/T3x DBM for AICS Magazines CTR Inlet by Lumley

Tikka T3/T3x DBM for AICS Magazines CTR Inlet by Lumley
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(1 reviews)  

SKU
T3-DBM-CTR-STD
Quantity in stock
44 item(s) available
Weight
10.00 oz
Your price:
$129.00
Style
Quantity (44 available)
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A high-quality DBM that accepts all short action AICS pattern magazines (223/308/wsm) utilizing the Tikka T3/ T3x CTR bottom metal inlet and sharing the same factory CTR appearance. This inlet is shared with other Tikka T3/T3x variants that use this same bottom metal - the Arctic, Wild Boar, and UPR. However any Tikka T3 or T3x model will fit into a Tikka CTR stock and a number of stockmakers inlet this pattern (see table at bottom of the page). AICS magazines have a number of advantages over the CTR magazines. These include allowing a longer COAL, a lower price for comparable quality, being available to suit more cartridge case types, and being made by more manufacturers.

Supplied completely unassembled. Tools and fitting are required. Gunsmith installation recommended.

Features:

  • Machined from 7075-T76 aerospace alloy then hard coat type 3 anodized
  • Accepts all short action AICS pattern magazines (223/308/wsm)
  • Ambidextrous fit to both right-handed and left-handed rifles
  • Triggerguard is scalloped for better access to the magazine lever
  • All edges are chamfered or filleted to eliminate sharp edges everywhere
  • Includes bedding pillars and action screws
  • Includes spare parts (lever pins and lever springs)
  • Weight:
    • Standard version: 5.11 oz (145gm)
    • Barricade version: 5.62 oz (159.4gm)

Construction:

  • The magazine well and triggerguard are CNC machined from high-quality 7075-T6 aerospace alloy then hard coat anodized black
  • The magazine lever is CNC machined from 17-4 stainless steel then glass bead blasted
  • The pillars and action screws are included and are made from 316 stainless steel
  • The coil spring for the magazine release lever is made from piano wire and then zinc-plated
  • All other minor components are stainless steel

Fitting Guide:

Lumley supplies this DBM in component form. It was initially designed as a wholesale product at the request of a few commercial stock manufacturers in Australia and Europe. The DBM is priced very competitively to reflect this and for the volumes Lumley produces them. Different makes and materials of stocks have minor variations to the spacing of front and rear action screws (ie the pillar heights). For this reason, fitting is required noting the steps below. If in doubt, Lumley can provide advice via email but a competent gunsmith may be required to undertake the installation.

  1. The DBM is supplied completely unassembled. Minimum tools required for assembly are:
    • 3mm metric hex key
    • 4mm metric hex key
    • small nylon punch
    • 2mm (or 1.5mm) steel pin punch
    • flat smooth file
    • small wire cutters nylon bench block
    • gunsmiths hammer

2. The magazine release lever is deliberately manufactured to the maximum possible length where, with the supplied pillars installed, AICS magazines just click in and the bolt just clears the feedlips. Many shooters will want a slightly looser fit than this, whereas some will not. Lumley has tested this tight fit with magazines from Accuracy International (.308 case), Accurate Mag (.223, .308, WSM cases), Alpha Mag (.308 case), and MDT (.308 and WSM cases). As outlined in point #1, there are variations between different stocks and magazines. For a reliable fit to your specific rifle, the magazine lever may need to be filed down to lock in or otherwise suit your personal preferences. We recommend first assembling and testing the DBM to your rifle. If the lever is shortened, Lumly recommends only taking 0.5mm off the tip before refitting and testing the magazine function.

3. The coil spring that provides tension to the magazine release lever is deliberately manufactured slightly longer than required and cannot be installed at full length. Lumley supplies 3 coil springs, only 1 coil spring is required. Use wire cutters to remove coils until you have achieved the tension preferred for your individual rifle, which in most cases will be removing between 3 to 5 coils. If you cut off too many and aren't satisfied with the tension, you have 2 spare springs remaining. Test magazine release thoroughly based on your shooting style, with this design, some shooters will remove magazines using their index finger (generally requires less tension) whilst others with their thumb (generally requires more tension).

4. Lumley recommends the installation of the pillars for any stock that does not have aluminum bedding or similar. This includes all the factory Tikka T3/T3x stocks. Installing the pillars prevents over-compression in laminate/ walnut stocks and also removes other variables associated with the factory synthetic stocks caused due to the molding process used to manufacture them. As outlined in #2, the Lumley design relies on accurate spacing, which these pillars guarantee.

5. Take care when assembling the magazine release lever, spring, and dowel pin. Close attention is needed to avoid marring the anodized surface of the triggerguard when tapping in the dowel pin to secure the magazine release lever and the spring. Use a nylon punch to first get the dowel pin in 95% of the way, then carefully use a 1.5mm or 2 mm brass or steel pin punch to finish placing it with one firm tap. Lumly recommends placing the triggerguard against a padded surface or on a nylon bench block to drive in the dowel pin. Note that the dowel pin is splined on one side and is designed to sit slightly recessed from either face of the triggerguard.

6. If any of these steps are unclear, we recommend taking your DBM to a gunsmith for assembly and installation.

 

Stockmaker

    • Bell and Carlson - Fiberglass - USA
    • Bolly Aviation (PDI) - Carbon Fiber - Australia
    • Boyds - Laminate and Wood - USA
    • GGS - Laminate - Germany
    • Grayboe - Fiberglass - USA
    • GRS - Laminate and Synthetic - Norway
    • Kroseg Precision - Carbon Fiber - New Zealand
    • Iota - Carbon Fiber - USA
    • Manners - Laminate and Carbon Fiber - USA
    • McMillan - Laminate and Carbon Fiber - USA
    • Mesa - Carbon Fiber - USA
    • PSE  - Carbon Fiber - Ireland
    • Wood2Stock - Laminate - Netherlands
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Average customer rating:
 
(1 reviews)  



1 Most useful customer reviews (see all reviews):
M. Wiggins
Mar 9, 2024
Very easy to assemble, took less than 15 minutes from start to finish.

Advantages: Works with MDT metal 5 round, 10 round MDT poly/metal, and 3 round MDT polymer. Thats all I had to try.

Disadvantages: Don’t cut much off spring. Cutting three coils gave me perfect tension. If you cut too much then magazine will wiggle.
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