An excellent in the wild pic of an L119A2 was posted on the L119 Owners Club today, by JB; a well respected UKSF impression scene aficionado.

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Check out Colt Canada’s website.

 photo Screen Shot 2016-05-12 at 16.20.53_zpscrvrq2z7.pngSo what can we interpret from this information?

 photo Screen Shot 2016-05-12 at 16.21.17_zpsimx3pb6t.pngWell, it’s a one-piece upper, meaning that the rail and upper receiver are conjoined -or ‘monolithic’. JB refers to it as the IUR – which means Integrated Upper Receiver.

That’s interesting in itself, given that LMT – which owns the patent on monolithic uppers – successfully prevented Mega Arms from marketing their own one-piece upper.

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Update: originally the term IUR was not thought to be in use in the L119A2 lexicon, but it allegedly appears in MOD technical publications.

Update: Colt Canada appears to have offcially licensed the monolithic upper receiver design from LMT, as evidenced by the US Patent number on the A2’s upper.

Update: early IURs were shipped without the LMT patent appearing. It is thought that individual serial numbers were then applied. However, later L119A2s should include the patent after an agreement was reached with LMT.

The L119A2’s pistol grip looks very much like an Ergo grip.

Update: the grip is confirmed as Ergo and the L119A2 ships from the factory with the grip.

I can’t identify the brand of flip-up BUIS. The front looks HK style, but the overall shape of the sights isn’t one I can verify just yet. Could be proprietary Colt Canada products, but judging by the grip, stock, receiver end plate and flash hider they are not averse to buying from third parties at the top of their respective games.

Update: the L119A2 is not known to ship with BUIS. However, a rear BUIS has been observed in one UKSF reference pic. As well as the Colt Canada website pic above, MOD technical publications do depict A2 BUIS. These depictions appear to match with the known reference pic:


The stock is, obviously, a Magpul CTR, in FDE.

Update: a company called O’Dell is said to furnish the L119A2 with Magpul parts, to ready them for export.


Looks like the usual UKSF Surefire flash hider.

Update: read HRW’s blog for The Reptile House about the UKSF issued suppressor and hider.

The receiver end plate is very likely a Magpul ASAP.

Update: this has been confirmed in reference pics as the Magpul ASAP

The Magpul ASAP QD has been observed on A2s with Full RIS IURs.

The GG&G AR15 vertical forgrip has also been observed on A2s with Full RIS IURs, along with birdcage flash hiders.


These parts all make sense, because they most are viewed as common to later L119A1s in the wild.

What I like most about this new iteration of UKSF blaster is the slick front end. OK, it’s a one-piece upper but it reminds me of the KAC URX 3.1.

DEVGRU uses the Remington RAHG, CAG uses the Geissele HK SMR. It’s not surprising that UKSF have ditched the venerable KAC RAS and are also using a tube.

It’s the way forward.

Click here to see the first public pic of the A2 15.7″ upper in use with SBS.

L119A2 variants here.

GG&G AR15 vertical foregrip in use with UKSF here.

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