Pistols compatible with A-Type insert
likely to use front spacer (included) All 1911's and 2011, including: STI of all frames, SVI all models, BUL, Kimber, Colt, PT, S&W 1911, Springfield, Les Bear, Ruger 1911, rock Island, Caspian No Phoenix Trinity: Evo 1, Evo 2, Honcho, Cheely Grip for 2011, Atlas Grip for 2011 No SIG P320 - all models: P320 Full Size, P320 Nitron Full Size, P320 Nitron Compact, P320 Nitron Carry, P320 FDE Compact, P320 TACOPS Carry, P320 RX Full Size, P320 RX Compact, P320-M17 Bravo, P320-M17, M-17 Commenorative No SIG P320X5 - all models: P320 X-Five Full Size, P320 X-VTAC, P320 X-Carry, P320 X5 Legion No GLOCK - all models and all Gens, including G17/19/20/21/22/23/29/31/32/34/35/37/38/41/45 No Walther PPQ Q5: Q5 Match, PPQ M2, PPQ.22, PPQ Q4 TAC, PDP No Springfield XDM - all models: XDM 5.25" Competition Serie Model, XDM 4.5" OSP Threaded Barrel Model, XDM 4.5" Threaded Barrel Model, XDM 4.5" Model, XDM 3.8" Model, XDM 3.8" Compact Model No SIG X-5 with Xmount No Revolvers (S&W N/L/K frames and similar: highly recommended to use WITH a muzzle support for Revolver No SIG X5 yes SIG 226/228 of all models: 226 Select, P226 Legion RX Full-Size, P226 Legion Full-Size, P226 Stainless Elite Full Size, P226 Emperor Scorpion, P226 RX Full Size, P226 MK25 Full Size, P226 22 SOA, P226 TACOPS Full Size, P226 Nitron Full Size 228 yes Tanfoglio Standard (round Trigger guard): Match, Combat F/R, Compact F/R yes Sphinx SDP yes Sphinx 3000 yes Walther PPQ Q5 SF yes Pistols compatible with
 
B-Type
insert likely to use front spacer (included) CZ - All steel frame pistols including the SP01, Shadow2, Czechmate, Orange, Parror, TS of all models No CZ P09 No Canik TP9FS No Phoenix red back No Beretta 92X, 92F No Grand Power MK12/MK07 No S&W M&P/2.0/Performance Centre Yes Tanfoglio - all Square trigger guards: Stock I, Stock II, Stock II Extreme, Limited, Limited Custom, Limited Custom Extreme, Limited Custom P, Gold Match, Gold Match Extreme, Domina, Domina Extreme, Stock III, Stock III Extreme, Stock III P Yes Not compatible with the FLEX Holster Comments Alien possible, but requires fitting of slide lock teeth (dremmel) HK USP: USP Tactical, HK 45, HK 45 Tactical Trigger guard not parallel HK VP9: VP9, VP9 SK, VP9 Tactical, VP40, SFP9 Trigger guard not parallel CZ P10 Trigger guard not parallel Arsenal Stryke A/B Trigger guard not parallel Any pistol with a trigger guard that is not the same width from front until close to grip
 
At the heart of the DAA Flex holster is the new, innovative, Pat Pending Flex insert block.
This insert design allows each user to adjust and fine-tune his insert block to perfectly fit his particular pistol. Not only does this allow us to support almost all gun types with just two models of inserts (Type-A and Type-B), but it enable users to adjust for the small variances that are often introduced by the gun manufacturers, who don’t consider the external dimensions of the trigger guard to be critical. This has always been an issue for the Alpha-X inserts, and this problem is now solved with the new Flex insert design.
Now, using the adjustable slide-lock teeth, the selection of side spacers and Shims, and possibly the front spacer, each shooter can achieve a perfect fit to his or her pistol.
The Flex Insert Block Assembly features an aluminum slide-lock mounted with user adjustable slide-lock teeth. Magnetic engagement, as in the latest generation of Alpha-X inserts. The new stainless-steel safely level is wider and flatter than that found in the Alpha-X blocks, and is mounted on the right side of the block, the outside of the holster for all RH shooters.  This makes it more accessible and easier to activate.
The new injection molding production process, and rail mounted magnetic support wedge, ensure the slide lock is more stable and moves more consistently than ever.
Do I need the A-type or B-type insert block assembly?
To determine which insert to order, first consult our list to see if your gun model is shown.
Download the list of pistol/insert type match here.
The beauty of the Flex insert is that even if we never tried your pistol model, and it’s not on our list – more than likely it can be used with either the A or the B-type block! In order to determine which one you need for an unlisted gun model, download and print the gun fit sketch, and follow the instruction in the setup video on how to use it to determine which Insert Block can be used with YOUR pistol.
Download the printable Gun fitment sketch here.
Please note:
Pistols which have a trigger guard that widens gradually from front to back (towards the grip) cannot be used in the Flex holster! Such guns include the HK USP and VP9, the CZ P10, the Arsenal Stryke A/B and some others. More on this in the setup video. These guns require a shaped/contoured cutout which cannot be formed using the parallel spacers of the Flex insert. For these guns – we continue to offer Alpha-X insert blocks.
The Flex insert are not compatible with the Alpha-X holsters. Nor can the Alpha-X inserts be used in the Flex holster body.
A Flex Insert Block Assembly includes:
A fully assembled insert block, including an aluminum slide lock with adjustable retention teeth and stainless safety lever
7 side spacers in increments of 1.25mm
A pack of 12 side-Shims, of approx. 0.12mm thickness 
A 2mm front spacer (used only for some gun types)
Two M4x8 screws for securing the insert assembly to the holster body
Two 2mmx6 self-tapping screws for mounting the front spacer
Two 4mmx5 self-tapping screws for mounting the THIN side spacer (use these short screws only for the thinnest 2.5mm side spacer)
Two 4mmx8 self-tapping screws for mounting the side spacers (use for all side spacers other than the thinnest 2.5mm one)